Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter
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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 standard deviation of 7. If a random sample of 31 steel bolts is selected, what is the probability that the sample mean would be greater than 147.7 millimeters? Round your answer to four decimal places.
Related Book For
Applied Statistics and Probability for Engineers
ISBN: 978-1118539712
6th edition
Authors: Douglas C. Montgomery, George C. Runger
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