Youve observed the following returns on Crash-n-Burn Computers stock over the past five years: 4 percent, 15 percent, 23 percent, 16 percent, and 15 percent. The average inflation rate over this period was 3.6 percent and the average T-bill rate was 5.7 percent. What was the average real return on the company's stock? What was the average nominal risk premium on the company's stock?