Question 2 1 pts 2 - In an application to estimate the mean number of miles that downtown employees commute to work roundtrip each day, the following information is given: n = 30 X = 6.8 S = 3.41 Based on this information, the upper limit for a 90 per cent confidence interval estimate for the true population mean is: Give your answer correct to 2 decimal places.Question 7 1 pts Q? A manager wishes to estimate a population mean using a 95% condence interval estimate that has a margin of error of i 41. If the population standard deviation is thought to be 151, what is the required sample size to the nearest whole number