Mathematics, 24.03.2020 21:46, dpaul4287

Suppose you wanted to estimate the time in minutes the average person spends on e-mail a day. It’s estimated that the standard deviation is 16 minutes and the average is 82 minutes. You want the margin of error to be only one minute. What sample size do you need if the confidence level is 99%?

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Suppose you wanted to estimate the time in minutes the average person spends on e-mail a day. It’s e...