Question: A certain machine part has a nominal length of 80 millimeters, with a tolerance of .05 millimeter. Suppose that the actual length of the parts

A certain machine part has a nominal length of 80 millimeters, with a tolerance of ±.05 millimeter. Suppose that the actual length of the parts supplied is a normal random variable with mean 79.99 millimeters and standard deviation .02 millimeter. How many parts in a lot of 1000 should you expect to lie outside the tolerance limits?

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