In a random sample of 28 ?people, the mean commute time to workwas 30.1 minutes and the standard deviation was 7.2 minutes. Assumethe population is normally distributed and use a? t-distribution toconstruct a 95?% confidence interval for the population mean mu.What is the margin of error of mu??
Interpret the results.
The confidence interval for the population mean mu is:
What is the margin of error of mu??
