A paper describes a study in which researchers observed wait times in coffee shops in Boston. Both wait time and gender of the customer were observed. The mean wait time for a sample of 145 male customers was 85.7 seconds. The mean wait time for a sample of 141 female customers was 113.2 seconds. The sample standard deviations (estimated from graphs that appeared in the paper) were 50 seconds for the sample of males and 75 seconds for the sample of females. For purposes of this exercise, suppose that these two samples are representative of the populations of wait times for female coffee shop customers and for male coffee shop customers. Is there convincing evidence that the mean wait time differs for males and females? Test the relevant hypotheses using a significance level of 0.05. (Use a statistical computer package to calculate the P-value. Use umales - Htemales: Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.) df = P-value = State your conclusion. Reject Ho. There is convincing evidence that the mean wait time differs for males and females. Fail to reject H: There is not convincing evidence that the mean wait time differs for males and females. O Reject Ho. There is not convincing evidence that the mean wait time differs for males and females. Fail to reject Ho: There is convincing evidence that the mean wait time differs for males and females.
A paper describes a study in which researchers observed wait times in coffee shops in Boston. Both wait time and gender of the customer were observed. The mean wait time for a sample of 145 male customers was 85.7 seconds. The mean wait time for a sample of 141 female customers was 113.2 seconds. The sample standard deviations (estimated from graphs that appeared in the paper) were 50 seconds for the sample of males and 75 seconds for the sample of females. For purposes of this exercise, suppose that these two samples are representative of the populations of wait times for female coffee shop customers and for male coffee shop customers. Is there convincing evidence that the mean wait time differs for males and females? Test the relevant hypotheses using a significance level of 0.05. (Use a statistical computer package to calculate the P-value. Use umales - Htemales: Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.) df = P-value = State your conclusion. Reject Ho. There is convincing evidence that the mean wait time differs for males and females. Fail to reject H: There is not convincing evidence that the mean wait time differs for males and females. O Reject Ho. There is not convincing evidence that the mean wait time differs for males and females. Fail to reject Ho: There is convincing evidence that the mean wait time differs for males and females.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![2. [-14 Points]
DETAILS
PODSTAT5 11.E.003.
MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
A paper describes a study in which researchers observed wait times in coffee shops in Boston. Both wait time and gender of the customer were observed. The mean wait time for a
sample of 145 male customers was 85.7 seconds. The mean wait time for a sample of 141 female customers was 113.2 seconds. The sample standard deviations (estimated from graphs
that appeared in the paper) were 50 seconds for the sample of males and 75 seconds for the sample of females. For purposes of this exercise, suppose that these two samples are
representative of the populations of wait times for female coffee shop customers and for male coffee shop customers. Is there convincing evidence that the mean wait time differs for
males and females? Test the relevant hypotheses using a significance level of 0.05. (Use a statistical computer package to calculate the P-value. Use Hmales - Hfemales: Round your test
statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)
t =
df =
P-value =
State your conclusion.
Reject Ho. There is convincing evidence that the mean wait time differs for males and females.
Fail to reject Ho. There is not convincing evidence that the mean wait time differs for males and females.
0'
Reject Ho. There is not convincing evidence that the mean wait time differs for males and females.
Fail to reject Ho: There is convincing evidence that the mean wait time differs for males and females.
You may need to use the appropriate table in Appendix
to answer this question.
Need Help?
Read It
O O](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9e0c3b52-81af-4354-8121-05bfc766aca3%2Fb6e74972-aa41-487e-8fa8-369db108c59e%2Fczcb77i_processed.png&w=3840&q=75)
Transcribed Image Text:2. [-14 Points]
DETAILS
PODSTAT5 11.E.003.
MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
A paper describes a study in which researchers observed wait times in coffee shops in Boston. Both wait time and gender of the customer were observed. The mean wait time for a
sample of 145 male customers was 85.7 seconds. The mean wait time for a sample of 141 female customers was 113.2 seconds. The sample standard deviations (estimated from graphs
that appeared in the paper) were 50 seconds for the sample of males and 75 seconds for the sample of females. For purposes of this exercise, suppose that these two samples are
representative of the populations of wait times for female coffee shop customers and for male coffee shop customers. Is there convincing evidence that the mean wait time differs for
males and females? Test the relevant hypotheses using a significance level of 0.05. (Use a statistical computer package to calculate the P-value. Use Hmales - Hfemales: Round your test
statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)
t =
df =
P-value =
State your conclusion.
Reject Ho. There is convincing evidence that the mean wait time differs for males and females.
Fail to reject Ho. There is not convincing evidence that the mean wait time differs for males and females.
0'
Reject Ho. There is not convincing evidence that the mean wait time differs for males and females.
Fail to reject Ho: There is convincing evidence that the mean wait time differs for males and females.
You may need to use the appropriate table in Appendix
to answer this question.
Need Help?
Read It
O O
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