9.62 A cutoff operation is supposed to cut dowel pins to 1.2 inches in length. A random
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9.62 A cutoff operation is supposed to cut dowel pins to 1.2 inches in length. A random sample of 60 such pins gave an average length of 1.1 inches and a standard deviation of 0.03 inch. Assuming normality of the pin lengths, find a tolerance interval for 90% of the pin lengths in the population from which this sample was selected. Use a confidence coefficient of 0.95.
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Related Book For 
Probability And Statistics For Engineers
ISBN: 9781133006909
5th Edition
Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr
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