Consider the following table for an eight-year period: Year WN T-bill return 7.40% 8.59 5.98 5.62 5.56 8.19 10.67 12.65 Inflation 8.60% 1223 6.83 4.97 6.59 8.91 13.18 12.41 00 O a. 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.) b. Calculate the standard deviation of Treasury bill returns and inflation over this time period. (Do not round Intermediate calculations and enter your answers as e percent rounded to 2 decimal places, e.g., 32.16.) c. Calculate the real return for each year. (A negatlve 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.) d. What is the average real retum 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.) a. Treasury bills Inflation rate Treasury bills Inflation rate Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Average real return d