Researchers are studying two different designs of computer keyboards, j and k, to investigate the effectiveness of the design on the speed of data entry. The researchers believe there is a tendency for people entering data with keyboard j to have faster entry times compared with people entering data with keyboard k. Using the same set of data for entry, the researchers randomly assigned 5 people to keyboard j and 6 people to keyboard k and recorded the number of seconds each person took to enter the data. The following dotplots show the observed entry times for the two keyboards

Answers

Answer 1

The data from the people using the j and the k keyboards reveal that it is not appropriate to conduct the two-sample statistical t-test, as there was the presence of outliers.

What is a two-sample t-test?

It is a statistical test that is used in the determination of the equality of the two mean populations. The test is used for the analysis of the statistical difference between the two tests.

The test data for the two keyboards have been based on the presence of the outliners in the data. This helps in the analysis of the population with the median, and not with the mean.

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Related Questions

All of the following are true about eating prior to exercise except:

Answers

Answer: i dont see any choices

Explanation:

so i really cant answer the question ??

A cart is moving to the right with a constant speed of 20 m/s

Answers

Explanation:

ok so its velocity is +20. where's the rest of the question?

A store offers four different brands of a product it decides to eliminate

Answers

What does this mean there nothing here

Grains seeds nuts and root vegetables are examples of

Answers

Answer:

Complex Carbohydrates

Explanation:

they are examples of complex carbohydrates

Copper is a metal commonly used for electrical wiring in houses

Answers

Answer:

Yes, that is true.

Explanation:

Into how many categories has the usda divided recipes

Answers

Answer:

it was divided into 9 categories

Explanation:

hope this helps;)

What is hempel’s claim in this excerpt? what evidence does hempel provide? what type of evidence does hempel use?

Answers

The answers to the Hampel's claims and the others are:

Regime should or can use of the social media against its protestors.Government forms or develop false stories on social media.Testimony given by an expert.

What is a claim?

This is known to be a kind of statement that is often made so as to take a side on any given issue that arises in an argument.

Note that Hampel's claim in this excerpt was that the Regime should or can use of the social media against its protestors and the evidence that Hampel provide was that Government forms or develop false stories on social media.

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Answer:

C, B, & A

Explanation:

i did it

Do you agree or disagree that we all take risks that could be perceived as dangerous?

Answers

Answer:

I agree!

Explanation:

I think it is necessary to take risks in life whether it is dangerous or not.

What is the controlling idea? many people seeking to lose weight eliminate carbohydrates from their diets. carbohydrates’ bad reputation ignores the benefits they can offer. there are many dishes that pair healthy vegetables with pasta. athletes must increase their carbohydrate intake to improve performance.

Answers

Answer:

B.) Carbohydrates’ bad reputation ignores the benefits they can offer.

Explanation:

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Carbohydrates’ bad reputation ignores the benefits they can offer, is the controlling idea according to the question. Therefore option B is correct.

What is Carbohydrate?

Exactly carbs are Sugar molecules makeup carbohydrates or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats. Glucose is created by your body's breakdown of carbs. The primary energy source for your body's cells, tissues, and organs is glucose, also known as blood sugar.

Glucose, produced by the body's breakdown of carbs, serves as the main fuel for the brain and muscles. One of the three macronutrientsnutrients that the body needs in greater quantities—is carbohydrates.

Hence, Carbohydrates’ bad reputation ignores the benefits they can offer, is the controlling idea according to the question

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How does the narrator’s viewpoint compare to the turtle’s in this passage? the narrator and the turtle both agree that jim talks too much. the narrator and the turtle both wish that jim would learn to play the fiddle. the narrator and the turtle both love to play the fiddle for the plantation owner. the narrator and the turtle both dislike jim.

Answers

Answer:

The answer is A. The narrator and the turtle both agree that Jim talks too much.

Explanation:

Answer: How does the narrator’s viewpoint compare to the turtle’s in this passage?

The narrator and the turtle both agree that Jim talks too much.

The narrator and the turtle both wish that Jim would learn to play the fiddle.

The narrator and the turtle both love to play the fiddle for the plantation owner.

The narrator and the turtle both dislike Jim.

Explanation: its A because it said in story

Describe rosenhan’s initial study of social perception and attribution involving the mental hospital and the eight pseudopatients. Explain the significance of the results

Answers

Answer:

There were two parts to this test. The first part was where Rosenhan had eight research investors go into a physiocratic hospital and pretend that they were patients. After a while they reported that they were starting to hear voices. After this the five people were sent to a hospital in five different states and then reported that they had felt perfectly fine.  The second stage was when he went to a hospital and told the hospital what was going to happen. The people at the hospital said they could never be fooled. After a short while some of the people had forty-one people that they believed they were Rosenhan collogues. However, he never sent anyone out at all. The conclusion was that the hospital would not be able to tell the difference between a sane person to an insane person. The experiment also showed that once you have an impression on someone it is hard to change that impression.

Explanation:

got 100% od Edge

Two organisms of different species are not likely to compete for the same

Answers

they are not likely to compete for the same mate.

A company is considering a capital investment of $16,000 in new equipment which will improve production and increase cash flows for the next five years at the following amounts: year 1: $8,000; year 2: $6,000; year 3: $5,000; year 4: $6,000; year 5: $5,000. the payback period is years.

Answers

Based on the cost of the capital investment in the new equipment and the cash flows for the next five years, the payback period is 2.4 years.

What is the payback period?

The payback period can be found by the formula:

= Year before payback + Amount remaining to be paid / Cashflow in year of payback

The year before payback can be inferred to be the Second year because $14,000 would have come in.

The remaining amount is:

= 16,000 - 14,000

= $2,000

Payback period is:

= 2 + 2,000 / 5,000

= 2.4 years.

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The puente hills landfill in california contains about 123 million tons of landfill waste and burns lfg to produce electricity. In a typical landfill, one million tons of landfill waste emits approximately 432,000 cubic feet of lfg per day. Calculate how much lfg is emitted at the puente hills landfill per year

Answers

The amount of landfill gas (lfg) which is emitted at the puente hills landfill in California per year is 53136000 cubic feet of lfg.

What is lfg (landfill gas)?

Landfill gas or lfg is the which is generated by the waste present on land by the action of microorganism.

The puente hills landfill in California contains about 123 million tons of landfill waste and burns lfg to produce electricity.

In a typical landfill, one million tons of landfill waste emits approximately 432,000 cubic feet of lfg per day. Thus, the cubic feet of lfg produced from 123 million tons is,

[tex]\text{lfg}=123\times432000\\\text{lfg}=53136000\rm; ft^3[/tex]

Thus, the amount of landfill gas (lfg) which is emitted at the puente hills landfill in California per year is 53136000 cubic feet of lfg.

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Rafael, a high-school student, wants to be a police officer. what would be a way for rafael to accomplish his goal?

Answers

The way for Rafael to accomplish his goal is finish with a good grade in school, have a clean record and then apply to the police academy.

What does it mean to accomplish one's goal?

For a person to be able to achieve a specific aim, they have to succeed in doing putting effort to doing he right thing that can lead to the success of that goal.

Hence the best thing for Rafael to accomplish his goal is finish with a good grade in school, have a clean record, no fighting, criminal records or any form of abuse and then He can apply to the police academy.

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Answer: C

Explanation: PLATO Users

A rifle of mass 2 kg is suspended by strings. the rifle fires a bullet of mass 0.01 kg at a speed of 200 m/s. the recoil velocity of the rifle is about

Answers

Answer:

-1m/s

Explanation:

P gun+ P bullet= P gun + P bullet

u= for both at first is zero

then

-P gun=P bullet

hence

P=mv

-2v=(0.01×200)

-2v=2

v= -1m/s

What did the majority of supreme court cases in the 1960s have in common? states' rights were protected. civil liberties were expanded. government power was increased. criminal defendants' rights were limited.

Answers

Answer: Civil Liberties we’re expanded

Explanation: I got the answer correct

Answer: B.  Civil liberties were expanded.

Explanation:

Mr. red's first year salary is $40,000 and it increases by $1000 each year. what is the explicit rule for this sequence in simplified form?

Answers

If Mr. red's first year salary is $40,000 and it increases by $1000 each year. The explicit rule is: an = 1000n + 39,000.

Explicit rule

First term (a1) =40000

Common difference (d) = 1000

Using this formula to find the explicit rule

an = a1 + (n - 1) ×d

Let plug in the formula

an = 40000 + (n - 1) × 1000

Evaluate

an = 40000 - 1000 + 1000n

an =39,000 + 1000n

Rewrite

an = 1000n + 39,000

Therefore the explicit rule of Mr. Red's salary is:  an = 1000n + 39,000.

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Rock pocket mice are rodents native to the southwest. Normally, the rock pocket mice are tan-colored rodents living in the sandy environment of the west. However, a mutation introduced an allele for dark fur. Scientists are now studying the populations of tan pocket mice living in the sandy environment along with the mutant black mice thriving on dark lava rock from an old lava flow. The rock pocket mice are living examples of evolution occurring today. Which of these statements supports that idea? select all three that apply

Answers

Answer:

the answers are c,d and e

Explanation:

What is the rectangular form of the polar equation? r−rcosθ=8

Answers

The equation in rectangular coordinates is:

√(x^2 + y^2)*(1 - cos(Atan(y/x))) = 8

What is the rectangular form?

Remember that:

r = √(x^2 + y^2)θ = Atan(y/x)

Then we can just replace that in the given equation:

r - r*cos(θ) = 8

r*(1 - cos(θ)) = 8

Using the above relations, we have:

√(x^2 + y^2)*(1 - cos(Atan(y/x))) = 8

That is the equation in rectangular coordinates.

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Answer:

x=1/16y^2−4

Explanation:

What is another way to use the help feature in access 2016? go to the backstage view using the file tab and select help. click the help icon that appears at the bottom right of the interface. use the light bulb at the top of the interface to gain access to shortcuts. use the first command group under the home tab to open a dialog box.

Answers

Answer:

C

Explanation:

I just got it right

Andrew pays $1824 per year in tuition. how much should he budget monthly for it?

Answers

Explanation:

He should $152 budget monthly for it.

What process brings the deep cold ocean currents up to the surface?

Answers

Answer:

upwelling

Explanation:

simce unlimited amount of water can not sink to the surface

Of the following potential benefits, which is least likely to be provided by the upgraded system? human representatives will not be needed to respond to some inquiries. Human representatives will not be needed to respond to some inquiries. The company will be able to provide a human representative for any incoming call. The company will be able to provide a human representative for any incoming call. Customers are likely to spend less time listening to information not relevant to their issue. Customers are likely to spend less time listening to information not relevant to their issue. Customers will be unable to mistakenly select the incorrect department for their particular issue

Answers

The company being able to provide human representative for any incoming call  is least likely to be provided by the upgraded system.

What is Upgraded system?

This involves the replacement with a better version in  order to keep the system up to date.

Human representative for any incoming call is least likely to be provided by the upgraded system as it deals with personnel management with less effect on the system.

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(b) suppose a simple random sampling process is used to select the sample of 100 women. what is the probability that at least 30 percent of the women in the sample will not meet the age requirement for the internships?

Answers

Based on the information given, the probability

of a randomly sampled woman not being

qualified for the internship will be 0.223.

The probability of a randomly sampled woman

not being qualified for the internship will be:

= P(x<20) = P(x=17) + P(x=18) + P(x=19)

= 0.005 + 0.107 + 0.111 = 0.223

Also, the probability that at least 30 percent of

the women in the sample will not meet the age

requirement for the internships will be 0.03216

In conclusion, from the information given,

a woman who does not meet the age

requirement is more likely to be selected with

a stratified random sample than with a simple

random sample.

As climate changes which type of reproduction would most likely result in a greater chance of survival for species

Answers

Answer:

S e xual Reproduction

Explanation:

The genetic diversity of s e xually produced offspring is thought to give species a better chance of surviving in an unpredictable or changing environment.

Is this statement true or false? "blowin' in the wind" and "the times they are a-changin'" became theme songs for the counterculture because their messages supported civil rights and protested war. true false

Answers

Answer:

the answer for that would be true

Explanation:

i did the k12 quiz

Answer:

Give mon7268 brainliest.

Explanation:

Its correct!

This idea enhances wollstonecraft’s argument by insisting that women deserve to be educated despite their inferior capacity for learning. Suggesting that women’s natural curiosity will lead to trickery if it is not nurtured through education. Asserting that domestic chores offer fulfillment because they require a vast knowledge of the world. Claiming that women who excel in domestic roles should be called upon to serve as world leaders

Answers

A vindication of the rights of women by Mary Wollstonecraft is a political philosophy. In the excerpt, the author implies that a woman's inquisitiveness will lead to trickery.

What is the theme of A Vindication of the rights?

A vindication of the rights of women is a dedication work to Charles. M. Talleyrand. It depicts the major denial and oppression faced by a woman in society and women's education.

The narrator suggests that if women are forced to only the domestic work then they will resort to clever and tricky ways like visiting fortune tellers, rivalries, and engaging in silly activities.

Therefore, option B. suggests that women can assort in tricky and clever ways.

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Answer:

b

Explanation:

Find a recurrence relation for the number of bit strings of length n that contain three consecutive 0s

Answers

Huh Huh Huh Huh Huh Huh

8-1 additional practice right triangles and the pythagorean theorem envision geometry

Answers

The value of x in the right triangle using the Pythagorean theorem is 15 units

How to determine the value of x in the right triangle?

From the right triangle (see attachment), we have the following Pythagoras theorem

x² = 12² + 9²

Evaluate the exponents

x^2 = 144 + 81

Evaluate the sum

x^2= 225

Take the square root of both sides

x = ±15

The value of x cannot be negative.

So, we have:

x = 15

Hence, the value of x is 15 units

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In this problem you will compare the effects of different compounding periods on the interest an investment earns. Complete the table below using the values indicated. Show the formula you used, with the correct values, in the second column. In the third column, give the result, rounded to the nearest cent.Principal: $1,000APR: 4.5%Time: 10 yearsFind the equations for annually, quarterly, monthly and daily Find all pls its due tommrow! I will give u 18 points pls answer. Sherry is trying to increase her daily exercise. She has downloaded an application on her phone that tracks how far and how long she walks in the evenings. Based on the components of self-regulation, which part of the process is she implementing General William T. Shermans March went between which two cities?A. Montgomery to SavannahB. Mobile to New OrleansC. Atlanta to savannaD. Mobile to Savannah select the correct answer. What is the value of this expression when c= -4 and d = 10?1(3+2).2.B. 9C. 21 D 41 Every year a person who has earned money must pay income taxes. When are these taxes due?July 4thJune 23rdFebruary 14thApril 15th Divide. give the quotient and remainder2746/6 Which expressions are equivalent to the given expression?40O 16020 4012100 58 410 John Locke supported the idea ofa(n)._Mbecause hebelieved that people generallywanted to do and be good.A. limited monarchyB. absolute monarchyC. Democracy Jing-mei fears that she doesn't know her mother well enough to tell Suyuan's life story to her half-sisters. Are there clues in the book that indicate her fears may be unfounded The result of the following cross indicates that the genotype of the female parent is _____. What is one disadvantage of the sudden growth of communities near the oil fields of North Dakota that places them at risk?Many of the oil wells leak, and oil constantly runs down the streetsAll of the communities have railroad crossingsMany of the towns do not have any roads leading into or out of town in case of emergencyMany of the communities have grown along the rail lines, which carry hundreds of filled oil tanker cars from the terminal to the refinery every day Which goal of the Preamble to the Constitution of the United States is illustrated by this cartoon? This artist is an incredibly good pianist and singer. She is a performer, songwriter, and producer. Her influences include madonna, david bowie, and freddie mercury. Her name is stefani germanotta, but we know her as __________. Which of the following sounds like the contents of an art collection? a ticket to an exhibition a small exhibit on loan a statue in the exhibition the entire exhibit Show your work step by step Which is a correct definition of carrying capacity? Athe largest number of different species that a particular habitat can support indefinitely with the resources available Bthe smallest number of different species that a particular habitat can support indefinitely with the resources available Cthe largest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available Dthe smallest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available Which layer will become saturated first when rain falls? clay granite rocks soil Match each statement in the table with one of the diagrams shown.a o oABCDStatementDiagramAll the vertices of the square touch the circleOnly one side of the square is a chord of the circleAll four sides of the square are tangents to the circle If a soccer team made 34 penalty shots out of 100, what fraction and whatpercentage of penalty shots did the team miss? O A.34100I B. 66%OC.66100D. 34%E.70100F. 0.34%