A CFO is looking at what percentage of a company's resources are spent on computing. He samples companies in the pharmaceutical industry and develops the following stem-and-leaf display (leaf unit =0.1 ). What is the approximate shape of the distribution of the data? Multiple Choice skewed to the right skewed to the left normal bimodal uniform On its website, the Statesman Journal newspaper (Salem, Oregon, 2005) reports mortgage loan interest rates for 30-year and 15 -year ixed-rate mortgage loans for a number of Willamette Valley lending institutions. Of interest is whether there is any systematic difference between 30-year rates and 15-year rates (expressed as annual percentage rate or APR) and, if there is, what is the size of hat difference. The following table displays the 30 -year rate and the 15 -year rate for each of nine lending institutions. Also given is the difference between the 30-year rate and the 15-year rate for each lending institution. Use the table to compare the 30-year rates and he 15-year rates. Also, calculate the average of the differences between the rates. (Input the amount as positive value. Round your answer to 4 decimal places.)