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A company manufacturing tennis balls tested a Radom sample of 45 balls from the last shift resulting in a mean bounce height of 54.2 inches.

A company manufacturing tennis balls tested a Radom sample of 45 balls from the last shift resulting in a mean bounce height of 54.2 inches. You may assume the population standard deviation is 0.35 inch for bounce height. Estimate the mean bounce height of all the manufactured tennis balls with 99% confidence

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