and Confidence I me In a random sample of 8 people, the mean commute time to work was 36.5 minutes and the standard deviation was 7 4 minutes. A 95% confidence interval using its the t-distribution was calculated to be (30 3,42.7) After researching commute times to work, it was found that the population standard deviation is 9.6 minutes. Find the margin of error and construct a 95% confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is known. Compare the results The margin of error of u is (Round to two decimal places as needed.) Contents e Resources Success Enter your answer in the answer box and then click Check Answer Success Help Me Solve This View an Example Get More Help Clear All Check Answer dia Library e Options OK Type here to seard