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A grocery store claims that customers spend an average of 4 minutes waiting for service at the store's deli counter. A random sample of 60 customers was timed at the deli counter, and the average service time was found to be 4.5 minutes. Assume the standard deviation is 1.5 minutes per customer. Using a = 0.10, complete parts a and b below. a. Does this sample provide enough evidence to counter the claim made by the store's management? Determine the null and alternative hypotheses. Họ: H H1: H V The z-test statistic is. (Round to two decimal places as needed.) The critical z-score(s) is(are). (Round to two decimal places as needed. Use a comma to separate answers as needed.) Because the test statistic V the null hypothesis. b. Determine the p-value for this test. The p-value is (Round to three decimal places as needed.) Enter your answer in each of the answer boxes.

A grocery store claims that customers spend an average of 4 minutes waiting for service at the store's deli counter. A random sample of 60 customers was timed at the deli counter, and the average service time was found to be 4.5 minutes. Assume the standard deviation is 1.5 minutes per customer. Using a = 0.10, complete parts a and b below. a. Does this sample provide enough evidence to counter the claim made by the store's management? Determine the null and alternative hypotheses. Họ: H H1: H V The z-test statistic is. (Round to two decimal places as needed.) The critical z-score(s) is(are). (Round to two decimal places as needed. Use a comma to separate answers as needed.) Because the test statistic V the null hypothesis. b. Determine the p-value for this test. The p-value is (Round to three decimal places as needed.) Enter your answer in each of the answer boxes.

MATLAB: An Introduction with Applications
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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A grocery store claims that customers spend an average of 4 minutes waiting for service at the store's deli counter. A random sample of 60 customers was timed at the deli counter, and the average service time was found to be 4.5 minutes. Assume the standard deviation is 1.5 minutes per customer. Using a = 0.10, complete parts a and b below. a. Does this sample provide enough evidence to counter the claim made by the store's management? Determine the null and alternative hypotheses. Ho: H The z-test statistic is (Round to two decimal places as needed.) The critical z-score(s) is(are) (Round to two decimal places as needed. Use a comma to separate answers as needed.) Because the test statistic the null hypothesis. b. Determine the p-value for this test. The p-value is (Round to three decimal places as needed.) Enter your answer in each of the answer boxes.
Transcribed Image Text:A grocery store claims that customers spend an average of 4 minutes waiting for service at the store's deli counter. A random sample of 60 customers was timed at the deli counter, and the average service time was found to be 4.5 minutes. Assume the standard deviation is 1.5 minutes per customer. Using a = 0.10, complete parts a and b below. a. Does this sample provide enough evidence to counter the claim made by the store's management? Determine the null and alternative hypotheses. Ho: H The z-test statistic is (Round to two decimal places as needed.) The critical z-score(s) is(are) (Round to two decimal places as needed. Use a comma to separate answers as needed.) Because the test statistic the null hypothesis. b. Determine the p-value for this test. The p-value is (Round to three decimal places as needed.) Enter your answer in each of the answer boxes.
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