Consider the following table for the period from 1973 through 1980 Year 1973 1974 1975 1976 1977 1978 1979 1980 T-bill return 7.29% 7.99 5.87 5.07 5.45 7.64 10.56 12.10 Inflation 8.71% 12.34 6.94 4.86 6.70 9.02 13.29 12.52 Requirement 1: Calculate the average return for Treasury bills and the average annual infiation rate (consumer price index) for this period. (Do not round intermediate calculations. Enter your answers as a percentage rounded to 2 decimal places (e.g., 32.16).) Average return for Treasury bills Average annual inflation rate Requirement 2: Calculate the standard deviation of Treasury bill returns and inflation over this time period.(Do not round intermediate calculations. Enter your answers as a percentage rounded to 2 decimal places (e.g, 32.16).) Standard deviation of Treasury bills Standard deviation of inflation Requirement 3: (a) Calculate the real return for each year. (Do not round intermediate calculations. Enter your answers as a percentage rounded to 2 decimal places (e.g., 32.16). Negative amounts should be indicated by a minus sign.) Year 1973 Real return 1975 1976 1977 1978 1979 1980 (b) What is the average real return for Treasury bills? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16). Negative amount should be indicated by a minus sign.) Average real return for Treasury bills