10 10 points Year Treasury Bills 1 7.96% 8.76 13.22 6.59 7.71 5.74 5.48 6.17 7.47 8.41 9.84 11.38 14.14 8 13.02 13.56 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 sury 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.) X Answer is complete but not entirely correct. Treasury bills 8.50 % Inflation 10.12 % Treasury bills 2.39 X % Inflation 3.01 X % Average real return 19.55 X % a. b. C. -234567 Inflation 9.57%