Suppose we have the following Treasury bill returns and inflation rates over an eight year period Year Treasury Bills Inflation 10.60% 14.18 8.59 6.21 8.35 10.77 14.92 14.60 8.81% 9.66 7.42 6.52 7.00 9.29 12.11 2 3 4 6 7 13.85 a. Calculate the average return for Treasury bills and the average annual inflation rate for this period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) b. Calculate the standard deviation of Treasury bill returns and inflation over this period (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) c. What was the average real return for Treasury bills over this period? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Answer is not complete Treasury bills Inflation Treasury bills Inflation Average real return 11.03 %