Question

A physical therapist claims that women are more flexible than men. She measures the flexibility of...

A physical therapist claims that women are more flexible than men. She measures the flexibility of 26 randomly selected women and 26 randomly selected men. The more flexible an individual, the higher the score. The results of her study appear below:

Women Men Difference
Average 20.99 18.64 2.35
Standard Deviation 2.27 3.09 0.99
Sample Size 26 26 26

Is there sufficient evidence to conclude at the alpha = 0.1 level of significance that females are more flexible than are men? What is the P-Value of your test statistic?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A physical therapist believes that at 30 years old adults begin to decline in flexibility and...
A physical therapist believes that at 30 years old adults begin to decline in flexibility and agility. To test this, he randomly samples 25 of his patients who are less than 30 years old and 27 of his patients are 30 or older and measures each patient’s flexibility in the Sit-and-Reach test. Assume the populations are normally distributed. The results are below. Less Than 30 (Group 1) 30 or Older (Group 2) n 25 27 Mean Sit-and-Reach Score 20.46 18.84...
A physical therapist believes that at 30 years old adults begin to decline in flexibility and...
A physical therapist believes that at 30 years old adults begin to decline in flexibility and agility. To test this, he randomly samples 25 of his patients who are less than 30 years old and 27 of his patients are 30 or older and measures each patient’s flexibility in the Sit-and-Reach test. Assume the populations are normally distributed. The results are below. L Less Than 30 (Group 1) 30 or Older (Group 2) n 25 27 Mean Sit-and-Reach Score 21.46...
A physical therapist believes that at 30 years old adults begin to decline in flexibility and...
A physical therapist believes that at 30 years old adults begin to decline in flexibility and agility. To test this, he randomly samples 25 of his patients who are less than 30 years old and 27 of his patients are 30 or older and measures each patient’s flexibility in the Sit-and-Reach test. Assume the populations are normally distributed. The results are below. Less Than 30 (Group 1) 30 or Older (Group 2) n 25 27 Mean Sit-and-Reach Score 21.46 19.99...
A college professor at a particular college claims men have more credit card debt than do...
A college professor at a particular college claims men have more credit card debt than do college women. She collects data on a credit card debt from 38 randomly chosen college men and 38 randomly chosen college women. The results of her survey appear below. Men Women Difference Sample Size 38 38 38 Average 435 781 -346 Standard Deviation 1026 1489 1300 Is there sufficient evidence at the alpha = .10 level of significance to confirm the professor's claim? What...
According to a report by the American Cancer Society, more men than women smoke and twice...
According to a report by the American Cancer Society, more men than women smoke and twice as many smokers die prematurely than nonsmokers. In random samples of 200 males and 200 females, 62 of the males and 54 of the females were smokers. • Is there sufficient evidence to conclude that the proportion of males who smoke is greater than the proportion of females who smoke? α = .01 • Calculate the p-value associated with the test
Are women more likely than men to practice vegetarianism? Students in three statistics classes were randomly...
Are women more likely than men to practice vegetarianism? Students in three statistics classes were randomly selected and asked whether they had ever been vegetarians and here are the results of that survey: vegetarian not vegetarian women 19 45 men 11 31 a) Find the numbers of women and men (x) who say they are now or were once vegetarians, and also the total number of women and men each sample. xw = nw = xm =   nm = b)...
researchers claim that women speak more words per day than men. One estimate is that a...
researchers claim that women speak more words per day than men. One estimate is that a woman uses about 15,500 words per day while a man uses about 11,500. To investigate such claims, one study used a special device to record the conversations of male and female university students over a 4-day period. Samples of 18 men were selected to provide evidence that the mean number of words per day of men at this university differs from 11,500. The sample...
While job opportunities for men and women are considerably more balanced than they were 40 years...
While job opportunities for men and women are considerably more balanced than they were 40 years ago, the career aspirations may still differ. Is there a difference in majors chosen by men and women? Using the sample of 200 MBA students (in the data file), conduct a Chi Square Test of Independence to determine if one's choice of major is independent of their gender. Use a .05 significance level. ID Gender Major Employ Age MBA_GPA BS GPA Hrs_Studying Works FT...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT