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[Steps Shown] Find the necessary sample size. In order to fairly set flat rates for auto mechanics, a shop foreman needs to estimate the average time it

Question: Find the necessary sample size. In order to fairly set flat rates for auto mechanics, a shop foreman needs to estimate the average time it takes to replace a fuel pump in a car. How large a sample must he select if he wants to be 99% confident that the true average time is within 10 minutes of the sample average? Assume the standard deviation of all times is 25 minutes.

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Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


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