Year 1 Returns X 20% 15% 85 5 10 Using the returns shown above, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. (Do not round Intermedlate calculatlons. Enter your average return and standard devlatlon answers as a percent rounded to 2 declmal places, e.g., 32.16, and round the varlance answers to 5 decimal places, e.g., .16161.) Average returns Variances Standard deviations Suppose we have the following returns for large company stocks and Treasury bills over a six-year period: Year US Treasury billis 1 2 Large- Company stocks 3.96% 14.12 19.01 -14.67 -32.16 37.26 4.50% 4.88 3.80 6.96 4.88 6.14 4 5 6 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 Intermedlate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) C-1. Calculate the observed risk premlum In each year for the large-company stocks versus the T-bills. What was the average risk premlum over this period? (A negative answer should be Indicated by a minus slgn. Do not round Intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) 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 premlum over this period? (Do not round Intermedlate calculations and enter your answer as a percent rounded to 2 declmal places, e.g., 32.16.) Calculate the arithmetic average returns for large-company stocks and T-bills over this period. (Do not round Intermediate calculatlons 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 colculations and emer your answers as a percent rounded to 2 decimal places, c.g., 3216.) 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-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 enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) a. Large-company stocks % a. T-bills b. Large-company stocks b. T-bills % c-1. Average risk premium 6-2. Standard deviation