Question 15, 6.2.21-T HW Score: 26.67%, 4 of 15 points ('3 Part 1 of 3 0 Points: 0 of 1 [n a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7.4 minutes. A 90% esearching commute times to work. it was found that the condence interval using the t-distribution was calculated to be (285,385). After r population standard deviation is 9.6 minutes. Find the margin of error and construct a 90% condence interval Using the standard normal distribution with the appropriate calculations for a standard deviation that is known. Compare the results. .m- The margin of error of p is D. (Round to two decimal places as needed.) Get more help - Clear all @ Help me solve this View an example