A filling process is supposed to fill jars with 16 ounces of grape jelly. Specifications state that

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A filling process is supposed to fill jars with 16 ounces of grape jelly. Specifications state that each jar must contain between 15.95 ounces and 16.05 ounces. Ajar is selected from the process every half hour until a sample of 100 jars is obtained. When the fills of the jars are measured, it is found that  = 16.0024 and 5 = .02454. Using  and s as point estimates of/x and a. estimate the probability that a randomly selected jar will have a fill, x, that is out of specification. Assume that the process is in control and that the population of all jar fills is normally distributed.
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Business Statistics In Practice

ISBN: 9780073401836

6th Edition

Authors: Bruce Bowerman, Richard O'Connell

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