Provide the fan with the estimate using 90% confidence

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Reference no: EM13240874

A baseball fan would like to estimate the mean time it takes to complete a major league baseball game. He randomly selects 40 game lengths (times to complete games) for major league baseball games and finds the mean to be 178 minutes with a standard deviation of 12 minutes. Provide the fan with the estimate using 90% confidence. Also determine if the method you used is valid or not for this exercise.

Reference no: EM13240874

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