Question

A marketing study was conducted to compare the mean age of male and female purchasers of...

A marketing study was conducted to compare the mean age of male and female purchasers of a certain product. Random and independent samples were selected for both male and female purchasers of the product.It was desired to test to determine if the mean age of all female purchasers exceeds the mean age of all male purchasers. The sample data is shown here: Female: n = 20, sample mean = 50.30, sample standard deviation = 13.215 Male: n = 20, sample mean = 39.80, sample standard deviation = 10.040 Suppose the test statistic was calculated to be the value, t = 2.83. Use the rejection region to state the correct conclusion when testing at alpha = 0.05.

A. We reject H0.

B. We fail to reject H0.

C. We accept H0.

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 marketing study was conducted to compare the mean age of male and female purchasers of...
A marketing study was conducted to compare the mean age of male and female purchasers of a certain product. Random and independent samples were selected for both male and female purchasers of the product. It was desired to test to determine if the mean age of all female purchasers exceeds the mean age of all male purchasers. The sample data is shown here: Female: n = 10, sample mean = 50.30, sample standard deviation = 13.215 Male: n = 10,...
An experiment is conducted to compare the starting salaries of male and female college graduates who...
An experiment is conducted to compare the starting salaries of male and female college graduates who find jobs. Pairs are formed by choosing a male and a female with the same major and similar grade point averages. Suppose a random sample of 10 pairs is formed in this manner and the starting annual salary of each person is recorded. The differences within the pairs are obtained by subtracting the female salary from the male salary. The following results are obtained:...
Given: Female Mean is 178.8 and Standard Deviation is 63.29 N=20 Male Mean is 231.9 and...
Given: Female Mean is 178.8 and Standard Deviation is 63.29 N=20 Male Mean is 231.9 and Standard Deviation is 98.31 N=20 4) Use a 0.05 significance level to test the claim that the mean weight of male bears is greater than that of female bears. Take samples of size 20 from each gender. a) Hypothesis b)Diagram c) Conclusion Check that the requirements for performing the hypothesis test have been met. Any assumptions that you had to make?
In an olympiad contest, the mean score for 43 male participants is 21.1 and the standard...
In an olympiad contest, the mean score for 43 male participants is 21.1 and the standard deviation is 5. The mean score for 56 female participants is 20.9 and the standard deviation is 4.7. At = 0:01; can you reject the claim that male and female have equal score? a. Identify the claim and state H0 and Ha: b. Find the critical value and identify the rejection region. c. Find the standardized test statistic. d. Decide whether to reject the...
t Hypothesis Test for Population Mean Show that the mean age of all buyers is below...
t Hypothesis Test for Population Mean Show that the mean age of all buyers is below 40. After collecting a random sample of 5 buyers you find a sample mean of 35 and the sample standard deviation of 8. Assume the distribution of age is normal. Test at a 10% significance level. a. What is the alternative hypothesis? b. What is the table value? c. What is the rejection value? d. What is the test statistic value? e. What is...
Do female college students spend more time than male college students watching TV? This was one...
Do female college students spend more time than male college students watching TV? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent watching...
Do female college students spend more time than male college students watching TV? This was one...
Do female college students spend more time than male college students watching TV? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent watching...
Researchers measured the amount of plasma carotenoids (in microgram per milliliter) of male and female zebra...
Researchers measured the amount of plasma carotenoids (in microgram per milliliter) of male and female zebra finches. Here are the summary statistics from the study. Sex N Mean Standard Deviation Males 50 31.77 13.08 Females 52 29.74 14.57 Do male and female zebra finches differ in their plasma carotenoid levels? A) State the null and alternative hypotheses. B) What is the P –value for this test? C) What is your conclusion? Reject H0 or Do not reject H0? D) Write...
a random sample of 81 executives (these 81 include both male and female) is drawn for...
a random sample of 81 executives (these 81 include both male and female) is drawn for the purpose of estimating the population proportion of females and the mean age of all female executives. The sample contains 33 female executives and for those ladies, the sample mean and standard deviation are 46.5 years and 6.8 years, respectively. We now want to build a confidence interval for the mean age of all female executives. a.: check that the conditions to build a...
In a study of 200 randomly selected adult female and 250 randomly selected adult male Internet...
In a study of 200 randomly selected adult female and 250 randomly selected adult male Internet users, 30% of the females and 38% of the males said that they plan to shop online at least once during the next months. At alpha = 0.10, test the claim that there is a difference between the proportion of female and the proportion of male Internet users who plan to shop online by specifically following and addressing the questions below: Identify the claim...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT