Refer to the accompanying data display that results from a sample of airport data speeds in mbps. complete parts (a) through (c) below. tinterval (13.046,22.15) x overbarequals17.598 sxequals16.01712719 nequals50 a. express the confidence interval in the format that uses the "less than" symbol. given that the original listed data use one decimal place, round the confidence interval limits accordingly. 13.05 mbpsless thanmuless than 22.15 mbps (round to two decimal places as needed.) b. identify the best point estimate of mu and the margin of error.