Suppose we have the following Treasury bill returns and inflation rates over an eight- year period: Year 1 2 3 4 5 6 7 8 00 VOU AWN- Treasury Bills 8.27% 9.09 6.19 5.32 5.77 8.03 11.02 12.70 Inflation 10.02% 13.55 7.33 5.04 7.09 9.48 13.80 13.30 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.) a. Treasury bills Inflation b. Treasury bills Inflation c. Average real return 8,30 % 9.95% 2.50% 3.20 % -0.02%