Question: A production process has a process capability ratio, Cp = 0.95. (a) What fraction of its products is defective under ideal conditions? Suppose, at some

A production process has a process capability ratio, Cp = 0.95. (a) What fraction of its products is defective under ideal conditions? Suppose, at some time the current mean of the quantity of interest is found to be less than the targeted or desired mean, and it is found that the process capability index, Cpk = 0.9. (b) What fraction of products is defective under this operating condition.

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