2020seogang
2020seogang
10.11.2020 • 
Mathematics

Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have mean diameter of 126 millimeters, and a variance of 64. If a random sample of 37 steal bolts. is selected, what is the probability that the sample mean would be greater than 128.6millimeters? Round your answer to four decimal plates.

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