In a random sample of 21 people, the mean commute time to

Last updated: 7/20/2022

In a random sample of 21 people, the mean commute time to work was 33.1 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean μ. What is the margin of error of u? Interpret the results. The confidence interval for the population mean μ is (- (Round to one decimal place as needed.) The margin of error of μ is. (Round to one decimal place as needed.) Interpret the results. A. It can be said that 80% of people have a commute time between the bounds of the confidence interval. B. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. C. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. D. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.