In a random sample of 28 people, the mean commute time to work was 34.3 minutes and the standard deviation was 7.2 minutes. assume the population is normally distributed and use a t-distribution to construct a 99% confidence interval for the population mean μ. what is the margin of error of μ? interpret the results.

-the confidence interval for the population mean μ is ( , )?

-the margin of error of μ is ( , )?

-interpret the resluts.

a. with 99% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.

b. with 99% 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 99% of them will have commute times between the bounds of the confidence interval.

d. it can be said that 99% of people have a commute time between the bounds of the confidence interval.