(Answered) Problem 1mall security estimates that the average daily

Economics

PROBLEM 1

Mall security estimates that the average daily per-store theft is less than $250, but wants to determine the accuracy of this statistic. The company researcher takes a sample of 81 clerks and finds that =$220 and s = $40.

a) Test at α = .01

b) Construct a 90% CIE of μ

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