Suppose we have the following returns for large-company stocks and Treasury bills over a six-year period:

Suppose we have the following returns for large-company stocks and Treasury bills over a six-year period: Year Company Large Company 3.68% 14.15 19.19 -14.49 - 31.98 37.43 US Treasury Bill 4.72% 3.57 4.16 5.90 5.24 6.18 a. Calculate the arithmetic average returns for large-company stocks and T-bills over 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 the returns for large- company stocks and T-bills 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-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? (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.) C- 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 enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) a. Large-company stocks T-bills b. Large-company stocks T-bills C-1. Average risk premium Standard deviation