Question: Problem 7.46 From a sample of 400 items 5% were found to be defective. Find a (a) 95% confidence interval for the proportion p of

Problem 7.46 From a sample of 400 items 5% were found to be defective. Find a

(a) 95% confidence interval for the proportion p of defective items.

(b) 95% one sided upper confidence interval for p.

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