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Question
The quality control department of a company has decided to select a sample of 20 items from each shipment of goods it receives and inspect them for defects. It has been decided that if the sample contains no defective parts, the entire lot will be accepted. Each shipment contains 1,000 items.a. What is the probability of accepting a lot that contains 10% defective items?
b. What is the probability of accepting a lot that contains 5% defective items?
c. What is the probability of rejecting a lot that contains 15% defective items?
Answer
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