A random survey of 100 people asking the number of cups of coffee they drank per week found a mean of 8 with standard deviation of 2.5 . Find the $68 \%$ confidence interval for the population mean.

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The Answer of A random survey of 100 people asking the number of cups of coffee they drank per week found a mean of 8 with standard deviation of 2.5 . Find the $68 \%$ confidence interval for the population mean.

A Random Survey of 100 People Asking the Number of Cups