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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
8.19 A manufacturing process is designed to produce bolts with a 0.5-in. diameter. Once each day, a random
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sample of 36 bolts is selected and the diameters recorded. If the resulting sample mean is less than 0.49 in. or greater than 0.51 in., the process is shut down for adjust- ment. The standard deviation for diameter is 0.02 in. What  is the probability that the manufacturing line will be shut down unnecessarily? (Hint: Find the probability of observ- ing an x in the shutdown range when the true  process mean really is 0.5 in.)
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