Suppose we have the following returns for large-company stocks and Treasury bills over a six year period: Year Large Company US Treasury Bill 1 3.96 4.50 2 14.12 4.88 3 19.01 3.80 4 14.67 6.96 5 32.16 4.88 6 37.26 6.14 a. Calculate the arithmetic average returns for large-company stocks and T-bills over this period. (Round your answers to 2 decimal places. (e.g., 32.16)) Average returns Large company stocks % T-bills % b. Calculate the standard deviation of the returns for large-company stocks and T-bills over this period. (Do not round intermediate calculations and round your final answers to 2 decimal places. (e.g., 32.16)) Standard deviation Large company stocks % T-bills % c-1 Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. What was the average risk premium over this period? (Negative amount should be indicated by a minus sign. Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Average risk premium % c-2 Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. What was the standard deviation of the risk premium over this period? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))