Question: PROBLEM 1 (25 points) Mall security estimates that the average daily per-store theft is less than $250, but wants to determine the accuracy of this

PROBLEM 1 (25 points)

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 = .01

b) Construct a 90% CIE of

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