Suppose the average time a customer waits at the check-out line in a grocery store is 12

Question:

Suppose the average time a customer waits at the check-out line in a grocery

store is 12 min with a standard deviation of 3 min. If you take a random sample

of five customers, what is the probability that the average check-out time will

be at least 10 min? What is the mean of the sample check-out time? What is the

standard deviation of the sample mean?

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Statistics For Business And Financial Economics

ISBN: 9781461458975

3rd Edition

Authors: Cheng Few Lee , John C Lee , Alice C Lee

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Question Posted: Feb 17, 2024 11:38 PM

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Suppose the average time a customer waits at the check-out line in a grocery store is 12

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Step by Step Answer:

To solve this problem we will use the Central Limit Theorem which states that the distribution of sa...View the full answer

Statistics For Business And Financial Economics

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