Mathematics, 29.10.2020 03:50 hardwick744

Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 139 millimeters, and a variance of 64 . If a random sample of 41 steel bolts is selected, what is the probability that the sample mean would be greater than 140.3 millimeters? Round your answer to four decimal places.

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