Statement of a problem № m907


Swiss Watches, Ltd. purchases watch stems for their watches in lots of 10,000. Their sampling plan calls for checking 20 stems, and if 3 or fewer stems are defective, the lot is accepted. a. Based on the sampling plan, what is the probability that a lot of 40% defective will be accepted? b. Design an OC curve for incoming lots that have zero, 10%, 20%, 30%, and 40% defective stems.

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