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In a random sample of 28 people, the mean commute time to work was 30.1 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 u. What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is () (Round to one decimal place as needed.) The margin of error of u is (Round to one decimal place as needed.) Interpret the results. OA. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. OB. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval C, With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval, OD. It can be said that 80% of people have a commute time between the bounds of the confidence interval