In a random sample of 2020 ​people, the mean commute time to work was 31.831.8 minutes and the standard deviation was 7.37.3 minutes. Assume the population is normally distributed and use a​ t-distribution to construct a 8080​% confidence interval for the population mean muμ. What is the margin of error of muμ​? Interpret the results.

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In a random sample of
2020
​people, the mean commute time to work was
31.831.8
minutes and the standard deviation was
7.37.3
minutes. Assume the population is normally distributed and use a​ t-distribution to construct a
8080​%
confidence interval for the population mean
muμ.
What is the margin of error of
muμ​?
Interpret the results.
 
 
 

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Part 1
The confidence interval for the population mean
muμ
is left parenthesis nothing comma nothing right parenthesis .
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