# Confidence interval

The average number of miles that 90 truckers drove in a day was 540.0 with a standard deviation of 40 miles. What is the 99% confidence interval of the true mean number of miles driven by all truckers?

Enter the response as (beginning of interval, ending of interval) with no spaces between numbers or symbols, EXCEPT after the comma

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The average number of miles that 90 truckers drove in a day was 540.0 with a standard deviation of 40 miles. What is the 99% confidence interval of the true mean number of miles driven by all truckers?

99% Confidence ...

#### Solution Summary

Finds 99% confidence interval of the true mean number of miles driven by all truckers.

$2.19