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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.

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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A grocery store claims that customers spend an average of 6 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 6.4 minutes. Assume the standard deviation is 1.8 minutes per customer. Using a = 0.05, 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.)
Transcribed Image Text:A grocery store claims that customers spend an average of 6 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 6.4 minutes. Assume the standard deviation is 1.8 minutes per customer. Using a = 0.05, 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.)
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