consider a situation in which we calculate a 95% confidence interval that ranges from 35 to 45. if we conducted a two-sided test with the null hypothesis of the population mean equaling 43, what would the likely result of our test be?

Answers

Answer 1

The result of the two-sided test with the null hypothesis of the population mean equaling 43, based on the 95% confidence interval that ranges from 35 to 45, would be rejecting the null hypothesis.

The 95% confidence interval that ranges from 35 to 45 suggests that we are 95% confident that the true population mean falls between those values.

To conduct a two-sided test with the null hypothesis of the population mean equaling 43, we can use the confidence interval to see if the null hypothesis falls within the range of the confidence interval or not.

Since the null hypothesis of 43 is not within the confidence interval of 35 to 45, we can reject the null hypothesis at the 0.05 level of significance, which means we have evidence to suggest that the true population mean is not 43.

Therefore, the likely result of our test would be rejecting the null hypothesis.

Learn more about two sided test here

brainly.com/question/16842072

#SPJ4


Related Questions

a horizontal curve is to be designed with a 2000 feet radius. the curve has a tangent length of 400 feet and its pi is located at station 103 00. determine the stationing of the pt.

Answers

A horizontal curve is to be designed with a 2000 feet radius. The curve has a tangent length of 400 feet and its pi is located at station 103+00. Determine the stationing of the PT.

A horizontal curve is a curve that is used to provide a transition between two tangent sections of a roadway. To connect two tangent road sections, horizontal curves are used. Horizontal curves are defined by a radius and a degree of curvature. The curve's radius is given as 2000 feet. The tangent length is 400 feet.

The pi is located at station 103+00.

To determine the stationing of the PT, we must first understand what the "pi" means. PC or point of curvature, PT or point of tangency, and PI or point of intersection are the three primary geometric features of a horizontal curve. The point of intersection (PI) is the point at which the back tangent and forward tangent of the curve meet. It is an important point since it signifies the location of the true beginning and end of the curve. To calculate the PT station, we must first determine the length of the curve's arc. The formula for determining the length of the arc is as follows:

L = 2πR (D/360)Where:

L = length of the arc in feet.

R = the radius of the curve in feet.

D = the degree of curvature in degrees.

PI (103+00) indicates that the beginning of the curve is located 103 chains (a chain is equal to 100 feet) away from the road's reference point. This indicates that the beginning of the curve is located 10300 feet from the road's reference point. Now we need to calculate the degree of curvature

:Degree of curvature = 5729.58 / R= 5729.58 / 2000= 2.8648 degrees. Therefore, the arc length is:

L = 2πR (D/360)= 2π2000 (2.8648/360)= 301.6 feet.

The length of the curve's chord is equal to the length of the tangent, which is 400 feet. As a result, the length of the curve's long chord is: Long chord length = 2R sin (D/2)= 2 * 2000 * sin(2.8648/2)= 152.2 feet To determine the stationing of the PT, we can use the following formula: PT stationing = PI stationing + Length of curve's long chord= 10300 + 152.2= 10452.2Therefore, the stationing of the PT is 10452+2.

A horizontal curve is to be designed with a 2000 feet radius : https://brainly.com/question/31078631

#SPJ11

a group of friends wants to go to the amusement park. they have no more than $480 to spend on parking and admission. parking is $8.75, and tickets cost $15.50 per person, including tax. which inequality can be used to determine p, the maximum number of people who can go to the amusement park?

Answers

Therefore, the inequality that can be used to determine p, the maximum number of people who can go to the amusement park, is p ≤ 30.

What do you mean by inequalities?

In mathematics, inequalities are statements that compare two values or expressions and indicate whether they are equal, greater than, or less than each other. An inequality is typically represented by a symbol, such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "≠" (not equal to).

Given by the question.

Let's assume that the maximum number of people that can go to the amusement park is p. The cost of parking is $8.75, and the cost of admission for each person is $15.50.

Then, the total cost for p people can be calculated as:

Total cost = (Cost of parking) + (Cost of admission per person x number of people)

Total cost = $8.75 + $15.50p

The group has no more than $480 to spend, so we can set up an inequality:

Total cost ≤ $480

$8.75 + $15.50p ≤ $480

Subtracting $8.75 from both sides:

$15.50p ≤ $471.25

Dividing both sides by $15.50:

p ≤ 30.35

Since the number of people cannot be a decimal, we round down to the nearest whole number: p ≤ 30.

To learn more about decimal:

https://brainly.com/question/30958821

#SPJ1

Jane contributes 12% of the total cost of her individual health care. This is a $95.50 deduction from each of her biweekly paychecks.
A) Find Jane's share.
b) Total value of the insurance.
b) Calculate the employer's share.

Answers

A) Jane's share is 12% of X, which is equal to 0.12X.

B) the total cost of the insurance is $20,691.67

C)  the employer's share is $18,208.67.

The total expense is what?

Total cost is the collective term for the cost of production as a whole, which encompasses both fixed and variable costs. The expense necessary to produce a good is referred to in economics as the total cost. There are two parts that make up the total cost: a set price The expense is what never changes.

According to the given information:

Let X be the total cost of Jane's individual health care, then:

A) Jane's share is 12% of X, which is equal to 0.12X.

B) We know that Jane's deduction from each biweekly paycheck is $95.50, so she pays a total of:

$95.50 * 26 = $2,483

This amount is equal to 0.12X, so we can set up an equation:

0.12X = $2,483

Solving for X, we get:

X = $20,691.67

Therefore, the total value of the insurance is $20,691.67.

C) The employer's share is the difference between the total cost of the insurance and Jane's share:

Employer's share = Total cost - Jane's share

Employer's share = $20,691.67 - $2,483

Employer's share = $18,208.67

Therefore, the employer's share is $18,208.67.

To know more about Total cost visit:

https://brainly.com/question/30355738

#SPJ1

Jane's share of the total cost of her individual health care is $795.83, The total value of the insurance is $795.83 + 0.88x and the employer's share is 0.88x.

What is cost?

In mathematics, cost refers to the amount of resources (such as money, time, effort, or materials) that are required to produce or obtain something.

A) To find Jane's share of the total cost of her individual health care, we can use the information that she contributes 12% of the cost, and that this is a $95.50 deduction from each of her biweekly paychecks.

Let x be the total cost of Jane's individual health care. Then:

12% of x = $95.50

0.12x = $95.50

x = $95.50 / 0.12

x = $795.83

Therefore, Jane's share of the total cost of her individual health care is $795.83.

B) To find the total value of the insurance, we can add up both Jane's share and the employer's share.

If Jane is contributing 12% of the total cost, then the employer is contributing the remaining 88% of the cost. So the employer's share can be calculated as:

88% of x = 0.88x

The total value of the insurance is then:

Total value = Jane's share + Employer's share

Total value = $795.83 + 0.88x

C) To calculate the employer's share, we can use the same information as above. The employer is contributing 88% of the total cost, so:

88% of x = 0.88x

Therefore, the employer's share of the total cost of Jane's individual health care is $0.88x, or approximately $700.33 (if we use the value of x that we found in part A).

To learn more about cost visit:

https://brainly.com/question/25109150

#SPJ1

g a group of people were asked if they had run a red light in the last year. responded yes, and responded no. find the probability that if a person is chosen at random, they have run a red light in the last year.

Answers

The probability that a person chosen at random has run a red light in the last year can be calculated by taking the number of people who said “yes” to running a red light and dividing it by the total number of people in the group.

For example, if 10 people said “yes” and 20 said “no”, the probability of a person chosen at random running a red light in the last year is 10/30, or 1/3.

The probability of an event happening is calculated using the formula:

Probability = Number of Favorable Outcomes / Total Number of Outcomes

In this case, the favorable outcome is running a red light in the last year, and the total number of outcomes is the total number of people asked.

To calculate the probability, we take the number of people who said “yes” to running a red light in the last year and divide it by the total number of people in the group. In our example, 10/30 = 1/3, so the probability that a person chosen at random has run a red light in the last year is 1/3.

In conclusion, the probability of a person chosen at random having run a red light in the last year is calculated by taking the number of people who responded “yes” and dividing it by the total number of people in the group.

See more about probability at: https://brainly.com/question/14633532

#SPJ11

each page number of a 488-page book is printed one time in the book. the first page is page 1 and the last page is page 488. when printing all of the page numbers, how many more 4's are printed than 8's?

Answers

the number of more 4's printed than 8's is 188 - 59 = 129.

We can approach this problem by counting the number of times the digit 4 appears and the number of times the digit 8 appears in the page numbers from 1 to 488.

First, let's count the number of times the digit 4 appears. We can break down the counting into three cases:

The digit 4 appears in the units place (page numbers 4, 14, 24, ..., 484): there are 49 such page numbers (from 4 to 484, incrementing by 10).

The digit 4 appears in the tens place (page numbers 40 to 49, 140 to 149, ..., 440 to 449): there are 50 such page numbers.

The digit 4 appears in the hundreds place (page numbers 400 to 488): there are 89 such page numbers.

Thus, the total number of times the digit 4 appears is 49 + 50 + 89 = 188.

Next, let's count the number of times the digit 8 appears. We can break down the counting into two cases:

The digit 8 appears in the tens place (page numbers 80 to 89, 180 to 189, ..., 480 to 489): there are 50 such page numbers.

The digit 8 appears in the hundreds place (page numbers 800 to 880): there are 9 such page numbers.

Thus, the total number of times the digit 8 appears is 50 + 9 = 59.

Therefore, the number of more 4's printed than 8's is 188 - 59 = 129.

learn more about number here

https://brainly.com/question/10547079

#SPJ4

i dont know how yo do this question

Answers

Step-by-step explanation:

2x + 2y  = 28   <=====given

x * y = 40     <===given .....  re-arrange to :

           y = 40 / x    <===substitute this 'y'  into the first equation

2x + 2 ( 40/x) = 28   <=====solve for x

2x^2 -28x + 80 = 0

x^2 -14x +40 = 0

(x -10)(x-4) = 0                        shows x = 10 or 4    then y = 4 or 10

dimensions    10    and 4   inches

Answer:

4 or 10 inches

Step-by-step explanation:

I added a photo of my solution

64x=8
What is the value of x that makes the equation true.

Answers

Answer:

x=8

Step-by-step explanation:

8 x 8 = 64

You can find this answer by using inverse operations.

64/8 = 8

To check your work, you can multiply...

8x8 = 64.

Hope this helps!

The lengt of a rectangle is 8 meters more that the width. If the area of the rectangle is 65 square meters, find the width

Answers

The width of the rectangle is 5 meters.

To find the width of the rectangle, let's use the formula for the area of a rectangle, which is:

Area = length x width

We know that the area of the rectangle is 65 square meters. We also know that the length of the rectangle is 8 meters more than the width. Let's call the width "w". Then, the length can be expressed as:

length = w + 8

Substituting this expression for length into the formula for the area, we get:

65 = (w + 8) x w

Simplifying and solving for w, we get:

w² + 8w - 65 = 0

Using the quadratic formula, we get:

w = (-8 ± √(8² + 4(1)(65))) / (2(1))

w = (-8 ± √(324)) / 2

w = (-8 ± 18) / 2

We take the positive value for w since the width cannot be negative:

w = (-8 + 18) / 2

w = 5

Find out more about the width of the rectangle

at brainly.com/question/27555801

#SPJ4

The figure below is dilated by a factor of 1/3 centered at the origin. Plot the resulting image. please helllpppp

Answers

The graph at the end of the response provides the dilated figure, which has the same format as the original figure but reduced side lengths as a result of the dilation with a scale factor of less than 1.

What is dilation?

To make an opening or hollow structure wider or larger than usual, such as a blood vessel or the pupil of an eye.

The process of dilation entails growing an object's size without changing its shape.

The size of the object may rise or decrease depending on the scale factor.

Using dilation maths, a square with a side of 5 units can be made wider to have a side of 15 units, yet the square retains its original shape.

So, the coordinates of each vertex of the figure are multiplied by the scale factors to create a dilatation in the image.

The vertices for the original figure that was graphed are listed as follows:

I(0,6).

H(3,6).

G(9,0).

F(-6,-9).

E(-6,-6).

The coordinates of the resulting image are presented as follows since the dilation has a scale factor of 1/3, which means that the coordinates are multiplied by 1/3:

I'(0,2).

H'(1,2).

G'(3,0).

F'(-2,-3).

E'(-2,-2).

Therefore, the graph at the end of the response provides the dilated figure, which has the same format as the original figure but reduced side lengths as a result of the dilation with a scale factor of less than 1.

Know more about dilation here:

https://brainly.com/question/3457976

#SPJ1

Correct question:

The figure below is dilated by a factor of centered at the origin. Plot the resulting image. -109 -11 E Click twice to plot a segment. Click a segment to delete it. 4 -5 7 F A -9 10 9 B 4 I d 3 P BI 1 9 H 3 4 6 6 M​

E
ON YOUR OWN
Surface Area 2
3.04 On Your Own: Surface Area 2
Now It's Time to Practice on Your Own

Two cubes are placed together to form a solid so that one of side of the first cube completely matches up with one side of the second cube. Each cube has a side length of 5 m.
What is the total surface area of the solid?
Enter your answer in the box.

Answers

250 is the total surface area of the solid.

How do you determine surface area?

The whole surface of a three-dimensional form is referred to as its surface area. The surface area of a cuboid with six rectangular faces may be calculated by adding the areas of each face.

                         Instead, you may write out the cuboid's length, width, and height and apply the formula surface area (SA)=2lw+2lh+2hw.

Each side of a cube with side length = 5  has an area of 25; the overall area is 6 x 25 = 150

A cube with sides of length 5 has an area of 25 on each side, making its overall area 6 x 25 or 150.

Both have a combined area of 150 + 150 = 300

300 - 25 - 25 = 250 is the result from each of the two cubes.

Learn more about Surface area

brainly.com/question/29298005

#SPJ1

I HAVE TO GET THIS RIGHT!!!
what is 2 + 2

Answers

Step-by-step explanation:

The sum of 2 and 2 can be derived using basic arithmetic operations.

Starting with 2, we can add 1 to get 3:

2 + 1 = 3

Then, we can add another 1 to get 4:

3 + 1 = 4

Therefore, the derivation of 2 + 2 is:

2 + 2 = (2 + 1) + 1 = 3 + 1 = 4

Hence, 2 + 2 is equal to 4.

Answer:

4

Step-by-step explanation:

a pair of headphones originally costs 95$ and is on sale for 70$ what is the percent change in the price of the headphones? be sure to show whether it is a percent increase or decrease.

Answers

The percent decrease in the price of the headphones is 26.32%.


Explanation:

To find the percent change in price, we can use the following formula:

percent change = (new value - old value) / old value * 100%

     
In this case, the old value is the original price of the headphones, which is $95.
   

The new value is the sale price, which is $70. Plugging these values into the formula, we get:percent change = (70 - 95) / 95 * 100%

   

percent change = -25 / 95 * 100%

     

percent change = -0.2632 * 100%

   

percent change = -26.32%

   
The negative sign indicates that the price has decreased, and the magnitude of the percent change is 26.32%, which means that the sale price is 26.32% lower than the original price.

the yearly rainfall of a town, recorded since records began, is normally distributed with a mean of 95 centimeters and a standard deviation of 28 centimeters. in what percentage of years will the rainfall be between 50 and 70 centimeters in that town?

Answers

In approximately 11.41% of years, the rainfall will be between 50 and 70 centimeters in that town.

To solve this problem, we need to find the percentage of years where the rainfall is between 50 and 70 centimeters. We can do this by standardizing the rainfall values and using a standard normal distribution table.

First, we need to standardize the rainfall values of 50 and 70 centimeters using the formula

z = (x - μ) / σ

where

z is the standardized value

x is the rainfall value

μ is the mean

σ is the standard deviation

For x = 50

z = (50 - 95) / 28

z = -1.607

For x = 70

z = (70 - 95) / 28

z = -0.893

Next, we use a standard normal distribution table or calculator to find the area under the curve between these two standardized values. This represents the percentage of years where the rainfall is between 50 and 70 centimeters.

Using a standard normal distribution table, we can find that the area under the curve between z = -1.607 and z = -0.893 is 0.1141. This means that approximately 11.41% of years will have rainfall between 50 and 70 centimeters in this town.

Learn more about standard deviation here

brainly.com/question/29262399

#SPJ4

the cpa practice advisor reports that the mean preparation fee for federal income tax returns was . use this price as the population mean and assume the population standard deviation of preparation fees is .

Answers

The CPA Practice Advisor reports that the mean preparation fee for federal income tax returns was 261. Use this price as the population mean and assume the population standard deviation of preparation fees is 120.

We need to find the probability of selecting a random sample of 20 tax returns and a standard deviation of the sample preparation fees of 50 or less.

We use the central limit theorem that states that, regardless of the shape of the population, the sampling distribution of the sample means approaches a normal distribution with mean μ and standard deviation

σ/√n

where μ is the population mean, σ is the population standard deviation, and n is the sample size.

Therefore, we have:

[tex]\mu = 261\]\\sigma = $120\]\\n = 20\][/tex]

[tex]S.E.= \frac{\sigma}{\sqrt{n}}\\S.E =\frac{\ 120}{\sqrt{20}}\\S.E =26.83[/tex]

The probability of selecting a random sample of 20 tax returns and a standard deviation of the sample preparation fees of 50 or less is given by:

[tex]P(Z < \frac{X - \mu}{S.E})\][/tex]

where X is the sample mean, μ is the population mean, and S.E is the standard error of the mean.

To calculate the probability, we standardize the distribution of the sample means using the z-score formula, i.e.,

[tex]\[z = \frac{X - \mu}{S.E} = \frac{\50 - \261}{\26.83} = -7.91\][/tex]

Therefore, the probability of selecting a random sample of 20 tax returns and a standard deviation of the sample preparation fees of 50 or less is zero because the z-score is less than the minimum z-score (i.e., -3.89) that corresponds to the probability of selecting a random sample of 20 tax returns and a standard deviation of the sample preparation fees of 50 or less.

Thus, it is impossible to obtain such a sample.

for such more question on probability

https://brainly.com/question/24756209

#SPJ11

What is the LMC of 3,

Answers

Answer: 3

Step-by-step explanation: I just know

given that kw for water is 2.4×10−14 at 37 ∘c, calculate the ph of a neutral aqueous solution at 37 ∘c, which is the normal human body temperature.

Answers

6.81 is the Ph of a neutral aqueous solution.

To calculate the pH of a neutral aqueous solution at 37°C with a KW of 2.4×10⁻¹⁴, follow these steps:

1. Identify that in a neutral aqueous solution, the concentrations of hydrogen ions (H⁺) and hydroxide ions (OH⁻) are equal. Therefore, [H⁺] = [OH⁻].

2. Use the KW expression, which is the product of [H⁺] and [OH⁻] concentrations. In this case, KW = 2.4×10⁻¹⁴.

3. Since [H⁺] = [OH⁻], you can rewrite the KW expression as KW = [H⁺]². Now, solve for [H⁺] by taking the square root of KW: [H⁺] = sqrt(KW) = sqrt(2.4×10⁻¹⁴).

4. Calculate the square root: [H⁺] ≈ 1.55×10⁻⁷ M.

5. Use the pH formula: pH = -log[H⁺]. Plug in the [H⁺] value: pH = -log(1.55×10⁻⁷).

6. Calculate the pH: pH ≈ 6.81.

The pH of a neutral aqueous solution at 37°C with a KW of 2.4×10⁻¹⁴ is approximately 6.81.

LEARN MORE ON AQUEOUS SOLUTION:https://brainly.com/question/19587902

#SPJ11

from an unlimited selection of five types of soda, one of which is dr. pepper, you are putting 25 cans on a table. determine the number of ways you can select 25 cans of soda if you must include at least seven dr. peppers..

Answers

There are 5²⁵ possible ways to select 25 cans of soda from 5 types, while there are [5¹⁸] (25 choose 7) possible ways to select 25 cans with at least 7 Dr. Peppers, and only [3²²] (25 choose 3) possible ways to select 25 cans with only 3 Dr. Peppers available.

(a) Since there are five types of soda and we are selecting 25 cans, we can choose any type of soda for each can. Therefore, the number of ways to select 25 cans of soda is 5²⁵.

(b) If we must include at least seven Dr. Peppers, then we can choose the remaining 18 cans from any of the five types of soda (including Dr. Pepper). We can choose 7 Dr. Peppers in (25 choose 7) ways. Therefore, the number of ways to select 25 cans of soda with at least seven Dr. Peppers is (25 choose 7) [5¹⁸].

(c) If there are only three Dr. Peppers available, then we must choose all three Dr. Peppers and select the remaining 22 cans from the four types of soda (excluding Dr. Pepper). We can choose the remaining 22 cans in 4²² ways. Therefore, the number of ways to select 25 cans of soda with only three Dr. Peppers available is 3 [4²²].

Learn more about Combinatorics here: brainly.com/question/13261685

#SPJ4

Complete question:

From an unlimited selection of five types of soda, one of which is Dr. Pepper, you are putting 25 cans on a table.

(a) Determine the number of ways you can select 25 cans of soda.

(b) Determine the number of ways you can select 25 cans of soda if you must include at least seven Dr. Peppers.

(c) Determine the number of ways you can select 25 cans of soda if it turns out there are only three Dr. Peppers available.

Determine the equation of the circle graphed below.

Answers

Answer:

Step-by-step explanation:

Circle centre: (4,7)

Radius: 3

Equation is:

  [tex](x-h)^2+(y-k)^2=r^2[/tex]   (where (h,k) is center, r is radius)

  [tex](x-4)^2+(y-7)^2=3^2[/tex]

  [tex](x-4)^2+(y-7)^2=9[/tex]     (This is the general standard form )

in expanded form,

  [tex](x^2-8x+16)+(y^2-14y+49)=9[/tex]

  [tex]x^2+y^2-8x-14y+56=0[/tex]

Note: Unless stated either form is an acceptable answer.

a bag contains a collection of distinguishable marbles. the bag has two red marbles, four green ones, one lavender one, six yellows, and five orange marbles. hint [see example 7.] how many sets of four marbles include exactly two green marbles? (note that this means there must be two other non-green marbles as well).

Answers

Therefore, the total number of sets of four marbles, including exactly two green marbles, is 720.

The given bag contains a total of [tex](2+4+1+6+5)=18[/tex] marbles.

There are two possibilities of selecting two green marbles and the other two marbles in a set, as shown below;GG -- NN (No Green Marbles)GG -- RR (No Green Marbles)GG -- YY (No Green Marbles)GG -- OO (No Green Marbles)GG -- GL (Lavender)GG -- RG (Red)GG -- OG (Orange)

The first two options have no green marbles; thus, they are eliminated. We can select non-green marbles in C(16,2) = 120 ways, then multiply by C(4,2) = 6 to choose two green marbles out of four.So, the total number of such sets is

[tex]120 × 6 = <<120*6=720>>720.[/tex]

for such more questions on possibilities

https://brainly.com/question/29508746

#SPJ11

To find the distance across a small lake, a surveyor has taken the measurements shown. Find the distance across the lake using this information. (Assume points A and B are exactly along the shoreline, and that a = 2.62 miles and b = 3.51 miles. Round your answer to two decimal places.) mi

Answers

we will use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

In this case, the distance across the lake is the hypotenuse, and the given measurements a and b are the other two sides.

Solution:

1. Write the Pythagorean theorem:

c² = a² + b²,

where c is the distance across the lake.
2. Substitute the given measurements:

c² = (2.62)² + (3.51)²
3. Calculate the squares:

c² = 6.8644 + 12.3201
4. Add the squared values:

c² = 19.1845
5. Find the square root of the sum:

c = √19.1845
6. Calculate the distance:

c ≈ 4.38 miles

The distance across the lake is approximately 4.38 miles

To know more about Pythagorean theorem:

https://brainly.com/question/14930619

#SPJ11

Write the compound inequality that represents the statement. The quotient of a number y and 3, less 2 is between –7 and 4.

Solve the compound inequality.

Answers

The compound inequality is -7 < y/3 - 2 < 4 and the solution is -15 < y < 18

identifying and solving the compound inequality

To write the compound inequality that represents the statement, we can first translate the words into symbols:

The quotient of a number y and 3, less 2: y/3 - 2

Is between -7 and 4: -7 < y/3 - 2 < 4

So the compound inequality that represents the statement is:

-7 < y/3 - 2 < 4

To solve this compound inequality, we can first add 2 to all parts of the inequality:

-7 + 2 < y/3 - 2 + 2 < 4 + 2

Simplifying, we get:

-5 < y/3 < 6

To isolate y/3, we can multiply all parts of the inequality by 3:

-15 < y < 18

Therefore, the solution to the compound inequality is: -15 < y < 18

Read more about compound inequality at

https://brainly.com/question/234674

#SPJ1

jason flips a coin three times. what is the probability that the coin will land on the same side in all three tosses?

Answers

The probability that the coin will land on the same side in all three tosses is 1/8.

There are two possible outcomes for each coin flip: heads or tails. Therefore, there are 2 × 2 × 2 = 8 possible outcomes for flipping a coin three times in a row.To find the probability that the coin will land on the same side in all three tosses, we need to count the number of outcomes that satisfy this condition.

There are only two such outcomes: either all three tosses are heads or all three tosses are tails. Therefore, the probability of this happening is 2/8 or 1/4.But we are asked for the probability that the coin will land on the same side in all three tosses, not just one specific side.

Therefore, we need to divide our previous result by 2 (the number of sides of the coin) to get the final answer: 1/4 ÷ 2 = 1/8. The probability that the coin will land on the same side in all three tosses is 1/8.

To know more about probability click on below link:

https://brainly.com/question/30034780#

#SPJ11

The accompanying table describes results from groups of 10 births from 10 different sets of parents. The random variable x represents the number of girls among 10 children. Use the range rule of thumb to determine whether 1 girl in 10 births is a significantly low number of girls.

Answers

Since the range of observed values is 1, which is less than two standard deviations away from 10, the observed value is not significantly different from the expected value and thus the number of girls in 10 births is not significantly low.

What is standard deviation?

Standard deviation is a measure of how spread out numbers are in a data set. It is calculated by taking the square root of the variance. Variance is the average of the squared differences from the mean. Standard deviation provides an indication of how much variation there is in the data set, and is often used in statistical analysis.

The range rule of thumb is a statistical method used to determine whether a given phenomenon is significantly different from an expected value. It states that if the range of observed values is greater than two standard deviations of the expected value, then the observed values are significantly different from the expected value.

In this particular case, the expected value is 10 girls in 10 births, and the observed value is 1 girl in 10 births. Since the range of observed values is 1, which is less than two standard deviations away from 10, the observed value is not significantly different from the expected value and thus the number of girls in 10 births is not significantly low.

The range rule of thumb is one way to determine whether observed values are significantly different from expected values, but there are other methods available as well.

For more questions related to variance

https://brainly.com/question/25639778

#SPJ1

In 2010, a total of 2187 of the employees at
Leo's company owned a petrol car.
In 2013, there were 1536 employees with
petrol cars.
Assuming this number decreases
exponentially, work out how many employees
owned a petrol car in 2019.
Give your answer to the nearest integer.

Answers

we can expect that approximately 815 employees owned a petrol car in 2019 (rounded to the nearest integer).

How to solve exponential function?

We can model the number of employees owning petrol cars in the years 2010 and 2013 using the exponential decay formula:

[tex]$$N(t) = N_0 e^{-kt}$$[/tex]

where N(t) is the number of employees owning petrol cars at time t, [tex]$N_0$[/tex] is the initial number of employees owning petrol cars (in 2010), k is the decay constant, and t is the time elapsed since 2010 (in years).

We can use the given information to find the value of k:

In 2013 (3 years after 2010), the number of employees owning petrol cars decreased from 2187 to 1536:

[tex]$$1536 = 2187 e^{-3k}$$[/tex]

Dividing both sides by 2187 gives:

[tex]$$e^{-3k} = \frac{1536}{2187}$$[/tex]

Taking the natural logarithm of both sides gives:

[tex]$$-3k = \ln\left(\frac{1536}{2187}\right)$$[/tex]

Solving for k gives:

[tex]$k = -\frac{1}{3} \ln\left(\frac{1536}{2187}\right) \approx 0.1565$$[/tex]

Now we can use the exponential decay formula to find the number of employees owning petrol cars in 2019 (9 years after 2010):

[tex]$$N(9) = 2187 e^{-0.1565 \cdot 9} \approx 815$$[/tex]

Therefore, we can expect that approximately 815 employees owned a petrol car in 2019 (rounded to the nearest integer).

To know more about Exponential function visit:

brainly.com/question/14355665

#SPJ1

Jhoney ate 3 apples and have 2 left how much did he eat?

Answers

By probability , 3 Apples are left .

What does a probability simple definition entail?

A probability is a number that expresses the possibility or likelihood that a specific event will take place. Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%.

                             The probability is a metric for determining how likely an event is to occur. It gauges how likely an event is. The probability equation is stated by the following notation: P(E) = Number of Favorable Outcomes/Number of Total Outcomes.

Jhoney ate =  3 apples

           = 2 left

  he eat = ³C₂

              =  3!/(3-2)! 2!

              = 3

Learn more about probability

brainly.com/question/30034780

#SPJ1

The amount A, in milligrams, of a 10-milligram dose of a drug remaining in the body after t hours
is given by the formula A = 10(08)t Find, to the nearest tenth of an hour, how long it takes for half
of the drug dose to be left in the body.

Answers

It takes 3.1 hour  for half of the drug dose to be left in the body.

Milligram

In the metric system the unit measurement of mass is known as mg .

mg is equal to one thousandth of a gram ie.1/1000. The unit is often used in medical field for weighing out small quantities of  ingredients.

prons

it is precise and it can be used to measure small quantities of items.

It is easy to convert mg to other units of measure.

cons:

It is a very small unit of measurement, it is difficult to measure the values accurately.

It is also a very commonly used unit of measurement, it get easily  confuse with other units

10*1/2=10(0.8)^t

0.8^t=1/2

t=log0.8*1/2

t=3.1

to know more about milligram visit

https://brainly.com/question/30404126

#SPJ1

Evaluate
8


1
+
0. 5

8a−1+0. 5b8, a, minus, 1, plus, 0, point, 5, b when

=
1
4
a=
4
1

a, equals, start fraction, 1, divided by, 4, end fraction and

=
10
b=10b, equals, 10

Answers

The evaluation of the algebraic expression 8a-1+0.5b when a=1/4 and b=10 is 6.

We are given an expression 8a−1+0.5b8, and we are asked to evaluate it when a = 1/4 and b = 10. Substituting these values, we get:

8(1/4) - 1 + 0.5(10) = 2 - 1 + 5

Simplifying the expression on the right-hand side, we get:

8a−1+0.5b8 = 6

Therefore, when a = 1/4 and b = 10, the value of the expression 8a−1+0.5b8 is 6.

This means that if we substitute the given values for a and b, the resulting expression will have a value of 6. It is important to correctly substitute the values before evaluating the expression to obtain the correct answer.

To know more about algebraic expression:

https://brainly.com/question/953809

#SPJ4

____The given question is incomplete, the complete question is given below:

Evaluate 8 a − 1 + 0.5 b 8a−1+0.5b8, a, minus, 1, plus, 0, point, 5, b when a = 1 4 a= 4 1 a, equals, start fraction, 1, divided by, 4, end fraction and b = 10 b=10b, equals, 10.

Find the tangent of a larger acute angle in a right triangle with side 10. 24 and 26 tangent of the larger acute angel

Answers

we have found that in the given right triangle with sides 10, 24, and 26, the tangent of the larger acute angle (angle B) is 2.4.

In a right triangle, the tangent of an acute angle is defined as the ratio of the length of the opposite side to the length of the adjacent side. Let us label the sides of the right triangle as follows:

The hypotenuse (the longest side) is 26

One of the acute angles (let's call it angle A) has opposite side length of 10

The other acute angle (let's call it angle B) has opposite side length of 24

To find the tangent of the larger acute angle, which is angle B, we use the formula:

tan(B) = opposite / adjacent

In this case, the opposite side of angle B is 24, and the adjacent side is 10. So we have:

tan(B) = 24 / 10 = 2.4

Therefore, the tangent of the larger acute angle (angle B) is 2.4.

This means that if we draw a line that is tangent to the circle with radius 10 centered at the vertex of angle B, the length of that line will be 24. This is a geometric interpretation of the tangent function, where the tangent of an angle is the length of a line tangent to the unit circle at that angle.

In conclusion, we have found that in the given right triangle with sides 10, 24, and 26, the tangent of the larger acute angle (angle B) is 2.4.

To know more about tangent  click here:

brainly.com/question/19064965

#SPJ4

PLEASE HELP THIS IS DUE TODAY!!

Answers

Answer:

Step-by-step explanation:

The first question is 3x - 3.
The second question is 9n^2 + 42n + 49.
The third question is -3x^2 + 14x - 14.
The fourth question is (x + 8)(x + 3),
(x + 8)(x - 3), (x - 8)(x + 3), (x - 8)(x - 3)

WILL GIVE BRAINLY

If sin (x) =3 cos(x), then what is sin(x) times cos (x)?

Answers

Using the identity that sin^2(x) + cos^2(x) = 1, we can rewrite sin(x) in terms of cos(x):

sin^2(x) + cos^2(x) = 1
Dividing both sides by cos^2(x):

tan^2(x) + 1 = sec^2(x)
Substituting sin(x) = 3cos(x) into the left-hand side:

tan^2(x) + 1 = (1/9)sec^2(x)
Multiplying both sides by cos^2(x):

(sin(x)/cos(x))^2 + cos^2(x) = (1/9)(1/cos^2(x))
Expanding the left-hand side:

sin^2(x)/cos^2(x) + cos^2(x) = 1/9cos^2(x)
Rearranging and factoring out cos^2(x):

sin^2(x) = (1/8)cos^4(x)
Multiplying both sides by cos(x):

sin^2(x)cos(x) = (1/8)cos^5(x)
Using the identity sin(x)cos(x) = (1/2)sin(2x):

(1/2)sin(2x) = (1/8)cos^5(x)
Multiplying both sides by cos(x):

(1/2)sin(2x)cos(x) = (1/8)cos^6(x)
Using the identity sin(2x) = 2sin(x)cos(x):

sin(x)cos(x) = (1/16)cos^6(x)
Therefore, sin(x)cos(x) is equal to (1/16)cos^6(x).
Other Questions
a spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.3 cm/min. at what rate is the volume of the snowball decreasing when the diameter is 12 cm. a patient reports craving cigarettes irritablity and restlessness on assessment a nurse finds that the patient has a decreased heart rate and blood pressure which medication does the nurse expect to be beneficial for the patient relate these terms: carbohydrates, digestive system, glucose, metabolized, blood, energy. Highlight each explain the transfer of authority symbolized by the transfer of keys between helen, kate, and annie throughout the play. 6. assume that cane normally produces and sells 106,000 betas per year. what is the financial advantage (disadvantage) of discontinuing the beta product line? postlab focus questions how much protein is present in each milk sample? discuss how your estimate compared to Zn(s)+CuSO4(aq)Cu(s)+ZnSO4(aq)When a zinc plate is placed in an aqueous solution of copper sulfate, elemental copper forms, as represented by the equation above. Which of the following represents the reduction half-reaction of the reaction?O Cu2+(aq)+2eCu(s)O Ag+(aq)+Cl(aq)AgCl(s)O Fe2+(aq)Fe3+(aq)+eO HF(aq)+OH(aq)H2O(l)+F(aq) 30 points how is the invasion of Manchuria by japan and the reoccupation of the Rhineland by germany different and similar?? both the smarthistory video and simon schama's discussion of bernini's ecstasy of saint teresa discuss how uncomfortable the sculpture makes some people feel. what is the issue? what is at least one feature that differentiates a humerus from a femur, at both the proximal and distal ends? what would its landing speed have been in the absence of air resistance? express your answer using two significant figures. esmeralda is taking a three month leave from work to travel across europe. the bureau of labor statistics counts esmeralda as general roles recognized by society such as father mother child police officer store clerk teacher student business executive and so on are called how is an average toddler likely to compare to an average 10 year-old child in terms of physical behavior? an investor buys 100 shares of abc stock 450 per share he also buys one abc january put for a premium of Which of the following statements are true? Select all that apply. The correlation coefficient, r , is equal to the number of data points that lie on the regression line divided by the total number of data points. The correlation coefficient gives us information about the number of outliers compared to the number of data points. The correlation coefficient is a unitless number and must always lie between 1.0 and +1.0, inclusive. The correlation coefficient, r , gives us information about the strength and direction of a linear relationship between any two variables. If r is the correlation between two variables x and y then -r is the correlation between y and x . The larger r is in absolute value, the stronger the relationship is between the two variables. THIS IS URGENT AM I CORRECT PLEASE HALP!!!!! Read this excerpt from "the world on turtle's back." the animals thought that perhaps there was dirt at the depths of the ocean, but they had never tried to reach the bottom before. one by one they tried to swim down, but their attempts were futile. finally, the muskrat disappeared into the cold depth of the ocean. after a lengthy amount of time, he drifted to the surface with a tiny speck of earth in his hand. he appeared to be dead, but the animals prayed and chanted, and finally he stirred. the earth-diver was successful in bringing forth the soil to make the earth grow. which sentence from the excerpt best supports the idea that the muskrat was willing to sacrifice himself for the good of all?a. finally, the muskrat disappeared into the cold depth of the ocean. b. after a lengthy amount of time, he drifted to the surface with a tiny speck of earth in his hand.c. he appeared to be dead. . . . [t]he animals prayed and chanted, and finally he stirred. d. the earth-diver was successful in bringing forth the soil to make the earth grow. Which of the following is a point of tangency on the circle below?A. Point YB. Point ZC. Point WD. Point X the organizational structure that breaks the rule and creates a dual chain of command is called the: