Mathematics, 18.05.2021 18:40, ehazlitt

Suppose we want a 90% confidence interval for the average amount spent on books by freshmen in their first year at college. The amount spent has a normal distribution with standard deviation $16. (a) How large should the sample be if the margin of error is to be less than $5

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Suppose we want a 90% confidence interval for the average amount spent on books by freshmen in their...