Assume the distribution of commute times to a major city follows the normal probability distribution and the standard deviation is 4.5 minutes. A random sample of 38 commute times is given below in minutes. Use Excel to find the 98% confidence interval for the mean travel time in minutes. Round your answers to one decimal place and use ascending order. Time 21 15 35 40 40 34 32 11 18 35 9 31 15 29 41 37 40 10 31 14 39 14 11 33 38 21 35 33 34 27 31 26 35 27 32 18 40 17