Question

Please help me answer questions 31 and 32 with explanations.

Suppose a company wanted to determine if more than 1% of the items produced by this company were defective. Fifty items were randomly selected and 1 was found to be defective.

31. Suppose the binomial formula was used to test the company’s claim. How many of the 50 items would we expect to be defective if the null hypothesis is true?   

32. Suppose the binomial formula was used to test the company’s claim. Let X = the number of defective items in the sample. What values of X are considered “as or more unusual” if the null hypothesis is true?

Answer 1

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