The statistical test that would be most appropriate determine the answer the researcher is interest in knowing is a chi-square test.
What is a chi-square test?A chi-square test is a statistical test used to test the relationship between categorical variables. It is used to determine the difference between the expected data and the observed data is due to chance.
Chi squared = [tex]\frac{(O_{i} - E_{i} )^{2} }{E_{i} }[/tex]
Where:
[tex]O_{i}[/tex] = observed value[tex]E_{i}[/tex] = expected value.The researcher is interested in knowing if the response to lowering the legal age for drinking alochol (observed value)) varies by gender (expected value). Thus, a chi-square test would be used.
To learn more about chi-square, please check: https://brainly.com/question/14082240
The cost of a jacket increased from $55.00 to $62.15. What is the percentage increase of the cost of the jacket?
Please help, quick. Best answer will get brainliest
Answer:24/3=$8 each shirt
y=1x+8
Step-by-step explanation:
3 shirts are equal to $24.
24/3=$8 each shirt
The equation is y=1x+8
In the table, just times 8 for each.
For the graph, I will label it 5 for each square on the x-axis and count by 1 at the y-axis.
How do I solve this?
Answer:
By making use of Pythagoras theorem
Step-by-step explanation:
l²=4²+4²
=16+16=32
I=✓32
8²=x²+(✓32)²
64=x²+32
x²=64-32
x²=32
x=✓32
whats the numerator for the following rational expression u/v + 2/v =?/v
Same Denominator We Add The Numerators:
Answer:
[tex]u + 2[/tex]
circle theorem - find p
Answer:
C
Step-by-step explanation:
the angle in a semicircle = 90° , that is the 3rd angle in the triangle.
the sum of the 3 angles in a triangle = 180° , then
p + 90° + 42° = 180°
p + 132° = 180° ( subtract 142° from both sides )
p = 48°
Show that 7x + 1 is equivalence to 2(2x - 1) + 3(x + 1)
Answer with Step-by-step explanation:
2 ( 2x -1 ) + 3 ( x + 1 )
First, let us find the value of the above expression.
2 ( 2x -1 ) + 3 ( x + 1 )
4x - 2 + 3x + 3
Combine like terms
4x + 3x - 2 + 3
7x + 1
Therefore, it is clear that the given expression is equal to 7x + 1.
∴ 7x + 1 = 2 ( 2x -1 ) + 3 ( x + 1 )
What is the range?
2 ,9 ,7 ,9 ,1 ,6
Answer:
8Step-by-step explanation:
The range is the difference between the highest and lowest values in a data set.
Highest value = 9Lowest value = 1Range = 9 - 1 = 8Answer:
8
Step-by-step explanation:
When finding the range, you have to subtract the smallest value from the biggest value,
2, 9, 7, 9, 1, 6
⇒ 1, 2, 6, 7, 9, 9
If we take a look at the set of numbers, we can see that 1 is the smallest value and 9 is the biggest,
Now that know that we need to subtract,
9 - 1
= 8
Therefore the range of this set of numbers is 8.
this is my last question. Can someone answer it?
Answer:
-25 is the simplest form
You estimated that you would need 252 more points to move up a level on your favorite video game. But after earning just 240more points, you leveled up! What was your percent error?
Answer:
5%
Step-by-step explanation:
(240-252/240)×100
A group consists of honest and extremely kind people.If 8 honest people and 12
extremely kind people can finish a piece of work in 10 days while 6 honest people and 8 extremely kind people can finish it in 14 days, then find the time taken by one honest people alone and that by one extremely kind people alone to finish the work.
Step-by-step explanation:
Please check the shots I sent you'll understand it perfectly
Jacks' Pizza pays $2000 rent per month and each pizza costs $2 in ingredients and hourly paid labor. Pizzas sell for $5 per pizza - what is the break even number of pizzas for Jack's pizza
Answer:
667 pizzas
Step-by-step explanation:
5-2=3 Unit CM
2000/3=666.6
Can't have .6 of a pizza, so round up
667
a) Fiona has shirts, pants, socks, and shoes and she has 4 colors of each which are blue, gray, orange, and black that she can wear to her co-op placement. draw a tree diagram
b) what is the probability that she starts with a black shirt.
Answer:
the probability = 1/4
Step-by-step explanation:
Check the diagram tree I provided (it’s incomplete because it’s so long)
the probability that she starts with a black shirt equal to :
[tex]p=\frac{1}{4} \times \frac{4}{4} \times \frac{4}{4} \times \frac{4}{4} = \frac{1}{4}[/tex]
because she has :
One choice to pick a black shirt out of 4 colors
4 choices to pick pants out of 4 colors
4 choices to pick socks out of 4 colors
4 choices to pick shoes out of 4 colors
The volume of a sphere is 1928m. What is the surface area of the sphere to the nearest tenth?
Answer:
749.1m
Step-by-step explanation:
Hope this helped!
A policy covering a one-year-old luxury car.
Annual premium?
96
32
60
84
Answer:
84
Step-by-step explana8tion:
If the diameter of a circle is 46 centimeters long, how long is the radius of the circle?
OA. 184 centimeters
OB B. 11.5 centimeters
OC. 92 centimeters
OD. 23 centimeters
Answer:
r = 23
Step-by-step explanation:
Using the formula
d = 2rSolving for r
r = d / 2 = 46 / 2 = 23F(x)=x^2. What is g(x)?
Maliki is building a ramp that is next to a building. The ramp is 5 feet long and has a vertical height of 2 feet. Approximately far away from the building is the ramp? building 2 feet 5 feet
and it is pythagorean theorem
Answer:
about 4.58 feet
Step-by-step explanation:
[tex] {2}^{2} + {x}^{2} = {5}^{2} [/tex]
[tex]4 + {x}^{2} = 25[/tex]
[tex] {x}^{2} = 21[/tex]
[tex]x = 4.58[/tex]
9.45×10^6 in standard form
Answer:
That is written in standard form, no changes are needed.
9.45×10^6 is the answer
Tristan is volunteering at the animal shelter one of his responsibilities is to give each of the 5 dogs their medicine each day if he needs to give each of the dogs at the shelter 4/9 of an ounce of medicine each day how many ounces of medicine does he need per day for all of the dogs
Answer:
2.22
Step-by-step explanation:
4/9 x 5
Solve for x. Round answer to the nearest tenth. Submit 20 27
Answer: 115.6
Step-by-step explanation:
Find the diameter of the circle with the given circumference. Use 3.14 for pi . C=18 cm
Answer:
[tex]d=\frac{18}{\pi }[/tex]
Step-by-step explanation:
We work our way backward to find the diameter.
Circumference of a Circle Formula:
[tex]C=2\pi r[/tex]
r is radius , 2*radius = diameter.
Given information: C=18 cm , pi=3.14.
[tex]C=2\pi r\\18=2\pi r\\[/tex]
Get r by itself.
[tex]r=18/2\pi\\r=9/\pi[/tex]
r≈2.864788976
2*r=d
[tex]2*9/\pi =diameter\\d=\frac{18}{\pi }[/tex]
What measure of central tendency is most affected by outliers?.
Answer: Mean
Mean is the only measure of central tendency that is always affected by an outlier.
hope this helps!
have a nice day!
How do you solve this promblem?
Answer:
D is the correct answer.
Step-by-step explanation:
[tex]3 {x}^{2} + 7x - {(x + 4})^{2} - 9 [/tex]
[tex]3 {x}^{2} + 7x - ( {x}^{2} + 8x + 16) - 9[/tex]
[tex]3 {x}^{2} + 7x - {x}^{2} - 8x - 16 - 9[/tex]
[tex]2 {x}^{2} - x - 25[/tex]
b + (5.68 - 3.007) for b = 6.134
Answer:
b+2.673
Step-by-step explanation:
substitute the value of the variable into the equation and simpilfy
Answer:
8.807
Step-by-step explanation:
1. 6.134 + (5.68 - 3.007)
6.134 + 2.673
= 8.807 or [tex](\frac{8807}{1000}, 8\frac{807}{1000} )[/tex]
plsssssssssssss
hewlp me i begg uuuu
Answer:
512
Step-by-step explanation:
please help me round to nearest hundredth
Answer:
(a) 2.27 lb/$
(b) 0.10 mi/min
Step-by-step explanation:
(a)Pounds per dollar is found by dividing pounds by dollars:
(25 lb)/($11.00) ≈ 2.272727... lb/dollar
The digit in the thousandths place is less than 5, so that digit and all digits to its right are dropped when rounding to hundredths.
2.27 pounds per dollar
__
(b)Speed in miles per minute is found by dividing miles by minutes:
(6 mi)/(58 min) ≈ 0.103448... mi/min
Rounding to hundredths is done the same way as above.
0.10 miles per minute
_____
If the digit to the right of the place you're rounding to is 5 or more, then 1 is added in the place you're rounding to when digits to its right are dropped.
Write an equation and solve:
An iced cake costs 10p more than a plain cake. Sarah bought two of each cake. They cost £1 altogether. What is the cost of an iced cake?
Answer:
55p
Step-by-step explanation:
iced cake = 10p more than a plain cake
iced cake = 10p + plain cake
iced cake and a plain cake together = £1
iced cake + plain cake = £1
if iced cake = 10p + plain cake, we can plug this into our second formula to get
(10p + plain cake) + plain cake = £1
10p + 2 * plain cake = £1 = 100p
subtract 10p from both sides to isolate the variable and its coefficient
2 * plain cake = 90p
divide both sides by 2 to isolate the variable
plain cake = 45p
iced cake = 10p + plain cake = 55p
Condense and simplify log 4 + log 25.
Answer:
2
Step-by-step explanation:
log 4 +log 25
Since these two equations have the same base and are being added, we can multiply the arguments
it would be: log 100
which is 2
Answer:
2
Step-by-step explanation: In logs, the opposite of addition is multiplication. Also, there needs to be only 1 log when you're condensing. So you'll multiply 4*25=100. And just plug in your calculator log(100) which is 2.
Hope this helps.
Which expression is equivalent to n5 • k5 • n-5 • k?
a. N^5 k
b. N^-25 k^5
c. K^6
d. (nk)^6
The expressions are algebraic expressions, and the equivalent expression of n⁵ * k * n⁻⁵ * k is k⁶
How to determine the equivalent expression?The expression is given as:
n⁵ * k⁵ * n⁻⁵ * k
Rewrite the expression as:
n⁵ * k * n⁻⁵ * k = n⁵ * n⁻⁵ * k⁵ * k
Apply the law of indices
n⁵ * k * n⁻⁵ * k = k⁶
Hence, the equivalent expression of n⁵ * k * n⁻⁵ * k is k⁶
Read more about equivalent expressions at:
https://brainly.com/question/2972832
#SPJ1
Answer:
k^6
Step-by-step explanation:
Janice earns £1,220 per month. She has to pay rent at £400 per month and utilities at
£100 per month. She spends £200 per month on food. How much money will Janice
have left after paying all of her outgoings? Make sure to show your working out.