You've observed the following returns on Pine Computer's stock over the past five years: 8 percent, -12 percent, 14 percent, 21 percent, and 16 percent. Suppose the average inflation rate over this period was 3.1 percent and the average T-bill rate over the period was 3.9 percent. What was the average real return on the company's stock? What was the average nominal risk premium on the company's stock over this period? Input area: (Use cells A6 to B13 from the given information to complete this question. You must use the built-in Exce function to answer this question. Make sure to use the "sample" Excel formula.)