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The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minutes. We want to see if we can find significant evidence to prove that the

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minutes. We want to see if we can find significant evidence to prove that the

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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The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minutes. We want to see if we can find significant evidence to prove that the mean waiting time of all customers is significantly more than 3 minutes.

MAYAY (d) At the 0.5 level of significance, your critical value is multiple choice 1.96 2.03 1.69 1.645 (e) At the OS level of significance, can you Conclude that the meaning waiting time is 3? Significantly more then ?? yes or no
Transcribed Image Text:MAYAY (d) At the 0.5 level of significance, your critical value is multiple choice 1.96 2.03 1.69 1.645 (e) At the OS level of significance, can you Conclude that the meaning waiting time is 3? Significantly more then ?? yes or no
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