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English, 29.07.2019 17:20 lamashermosa23

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 149 millimeters, and a standard deviation of 7 millimeters. if a random sample of 39 steel bolts is selected, what is the probability that the sample mean would be less than 150.8 millimeters? round your answer to four decimal places.

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