NEED THE AVERAGE REAL RISK FREE RATE AND AVERAGE REAL RISK PREMIUM

S12-11 Calculating Real Rates (LO1] 5.55 points You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 8 percent, 15 percent, 19 percent, 31 percent, and 21 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. eBook Ask Print a. What was the average real return over this time period? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What was the average nominal risk premium over this time period? (Do not round intermediate calculations and enter your answer as a percent rounded to 1 decimal place, e.g., 32.1.) References Average real risk-free rate b. Average real risk premium