Mall security estimates that the average daily per-store, Ask an Expert

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Mall security estimates that the average daily per-store theft is exactly $200, but wants to determine the accuracy of this statistic. The company researcher takes a sample of 81 clerks and finds that =$180 and s = $40.

a) Test at α = .05

b) Construct a 90% CIE of μ

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Category:- Statistics and Probability
Reference No.:- M9121177

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