Consider the following table for an eight-year period: Year T-bill return Inflation 1 7.32 % 8.68 % 2 8.19 12.31 3 5.90 6.91 4 5.22 4.89 5 5.48 6.67 6 7.79 8.99 7 10.59 13.26 8 12.25 12.49 Calculate the average return for Treasury bills and the average annual inflation rate (consumer price index) for this period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Average return for Treasury bills 7.84 % Average annual inflation rate 9.28 % Calculate the standard deviation of Treasury bill returns and inflation over this time period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Standard deviation of Treasury bills 2.8 % Standard deviation of inflation 3.046 % Calculate the real return for each year. (A negative answer should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Year Real return 1 16 % 2 % 3 % 4 % 5 % 6 % 7 % 8 % What is the average real return for Treasury bills? (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.) Average real return for Treasury bills %