using a z-score to determine the number of defective items in a production process.
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Question: A manufacturing process produces units that average 10 inches in length with a standard deviation of 3.2 inches. If only those units between 9.5 and 10.5 inches can be sued, how many out of sample of 100 must be thrown away?
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This is a confidence interval question:
The acceptable range is 10.5-10=0.5 inch
The standard error is ...
Solution Summary
the following exercise shows the process for calculating the probability that an item is defective given a sample from a manufacturing process.
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