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QUESTION
Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 148 millimeters, and a variance of 25...
Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 148
millimeters, and a variance of 25
.
If a random sample of 50
steel bolts is selected, what is the probability that the sample mean would be less than 147.1
millimeters? Round your answer to four decimal places.
