Problem 12-11 Calculating Real Rates [LO1] You've observed the following returns on Crash-n-Burn Computer's stock over the past five years: 15 percent. -15 percent, 17 percent, 27 percent, and 10 percent. Suppose the average inflation rate over this period was 1.6 percent and the average T-bill rate over the period was 41 percent. a. What was the average real risk-free rate 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 real risk premium? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Answer is complete but not entirely correct. Average real risk-free rate Average real risk premium 10.80 % 9.06 X % b