Question

PROBLEM 6: Who has the higher hourly wage at the ABC Company: Men or Women? Test...

PROBLEM 6: Who has the higher hourly wage at the ABC Company: Men or Women? Test at .05 significance level. Men: Average hourly wage = $12.50; standard deviation = $1.60; n = 80 Women: Average hourly wage = $11.40; standard deviation = $3.20; n = 120

PROBLEM 7: Who has a longer life span? Test at .05 significance level. Non-drug user: Average life span = 82.5 years; standard deviation = 12 years; n = 120 Drug user: Average life span = 72.5 years; standard deviation = 12.5 years; n = 50

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 researcher wants to prove that there is a difference in the average life spans between...
A researcher wants to prove that there is a difference in the average life spans between men and women in Japan. Let mu1 = average life span of Japanese women and mu2 = average life span of Japanese men. A random sample of 10 women showed an average lifespan of 83 years, with a sample standard deviation of 7 years. A random sample of 10 men showed an average lifespan of 77 years, with a sample standard deviation of 6.4...
Cholesterol level ~ Cholesterol level tends to increase with age in both women and men. A...
Cholesterol level ~ Cholesterol level tends to increase with age in both women and men. A medical researcher wants to use statistical inference to determine if average cholesterol level for women over 60 years is lower than men over 60 years. She randomly samples 110 women and 120 men who are over 60 years. The summary statistics are given in the table below in mg/dL. Give all answers to four decimals. Population/Group Gender Mean Cholesterol Level Standard Deviation 1 Women...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below. Statistic Men Women Sample mean 25.73 22.50 Sample standard deviation 5.76 4.69 Sample size 32 37 At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below. Statistic Men Women Sample mean 25.24 21.73 Sample standard deviation 5.53 4.54 Sample size 34 37 At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are not equal. The information is summarized below. At the .01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month?   Statistic Men Women   Sample mean 23.81    21.97      Sample standard deviation 5.67   ...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below. Statistic Men Women Sample mean 24.71 21.94 Sample standard deviation 5.53 4.71 Sample size 36 41 At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below. Statistic Men Women Sample mean 23.81 21.97 Sample standard deviation 5.67 4.61 Sample size 32 36 At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below. Statistic Men Women Sample mean 24.04 22.27 Sample standard deviation 5.88 4.79 Sample size 37 41 At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below. Statistic Men Women Sample mean 24.38 22.36 Sample standard deviation 5.91 4.80 Sample size 33 37 At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in...
A recent study focused on the number of times men and women who live alone buy...
A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below. Statistic Men Women Sample mean 25.57 22.33 Sample standard deviation 5.58 4.95 Sample size 36 40 At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT