A corporation that maintains a large fleet   of company cars for the use of its sales staff is interested in the mean   distance driven monthly per sales person. The following table gives the   monthly distances in miles driven by a random sample of 14 sales persons:   2552, 2495, 2374, 2583, 2396, 2269, 1998, 2097, 2348, 2051, 2134, 1850 Based   on this sample, find a 99% confidence interval for the mean number of miles   driven monthly by members of the sales staff, assuming that monthly driving   distances are normally distributed. Then complete the table below. Carry your   intermediate computations to at least three decimal places. Round your   answers to one decimal place. What is the lower limit of the confidence   interval? What is the upper limit of the confidence interval?