Suppose we have the following Treasury bill returns and inflation rates over an eight year period Year Treasury Bills 10.45% 11.36 9.06 8.34 8.88 11.23 14.11 15.97 Inflation 12.55% 16.00 10.29 7.97 10.29 12.77 16.98 16.90 2 3 4 5 8 a. Calculate the average return for Treasury bills and the average annual inflation rate for this period. (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Treasury bills Inflation b. Calculate the standard deviation of Treasury bill returns and inflation over this period. (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places, e.g. 32.16.) Treasury bills Inflation c. What was the average real return for Treasury bills over this period? (Negative amount should be indicated by a minus sign. Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Average real return