5. The MacDoobles restaurant chain claims that the customer wait time for service is normally distributed, with a mean of 3 minutes (suppose the distribution has a known standard deviation of 1 minute). You independently decide to test their claim by choosing restaurants at random and observing a SRS of 50 customers, noting the mean wait time for the sample was 3.25 minutes. Is there significant evidence (at a significance level of a = 0.05) that the true mean MacDoobles wait time is longer than they claim?
5. The MacDoobles restaurant chain claims that the customer wait time for service is normally distributed, with a mean of 3 minutes (suppose the distribution has a known standard deviation of 1 minute). You independently decide to test their claim by choosing restaurants at random and observing a SRS of 50 customers, noting the mean wait time for the sample was 3.25 minutes. Is there significant evidence (at a significance level of a = 0.05) that the true mean MacDoobles wait time is longer than they claim?
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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