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Suppose that Motorola uses the normal distribution to determine the probability of defects and the number...

Suppose that Motorola uses the normal distribution to determine the probability of defects and the number of defects in a particular production process. Assume that the production process manufactures items with a mean weight of 10 ounces. Calculate the probability of a defect and the suspected number of defects for a 1,000-unit production run in the following situations. (a)

a) The process standard deviation is 0.18, and the process control is set at plus or minus one standard deviation. Units with weights less than 9.85 or greater than 10.15 ounces will be classified as defects. If required, round your answer to four decimal places.

Math   Statistics-And-Probability   
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Answer #1

Refer Z-table to find the probability or use excel formula "=NORM.S.DIST(0.83, TRUE)" & "=NORM.S.DIST(-0.83, TRUE)" to find the probability.

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