According to a study of 90 truckers, a trucker drives, on average, 540 miles per
day. If the standard deviation of the miles driven per day for the population of
truckers is 40, find the 99% confidence interval of the mean number of miles
driven per day by all truckers.

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The Answer of According to a study of 90 truckers, a trucker drives, on average, 540 miles per
day. If the standard deviation of the miles driven per day for the population of
truckers is 40, find the 99% confidence interval of the mean number of miles
driven per day by all truckers.

According to a Study of 90 Truckers, a Trucker Drives