Question: Probability and Statistics . A sample size of n = 500 is taken from the production of light switches. A quality control engineer discovered that

Probability and Statistics

. A sample size of n = 500 is taken from the production of light switches. A quality control engineer discovered that 20 switches are defective. (a) Suppose that another 500 switches are to be made by the same factory. What are minimal and maximal amounts of defective switches should we expect with 90% condence? (b) Estimate the confidence probability that among the next 500 switches there will be at most 30 defective switches

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