9 Suppose we observe the following returns for large company stocks and Treasury bills over a six-year period: 10 points Year 1 2 3 4 5 6 Large Company US Treasury Bill 3.88% 5.78% 14.31 2.45 19.05 3.68 - 14.63 7.12 32.12 4.92 37.29 4.89 eBook Print References if you don't know how to do these types of calculations, watch the lecture video that covers working with random samples. In that video I work a very similar problem 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... 32.16.) b. Calculate the standard deviation of the returns for large company stocks and bills over this period. (Do not round intermediate calculations and enter your answers os a percent rounded to 2 decimal places, e.g. 32.16.) -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, 0.9., 32.16.) c-2. Use the observed risk premium in each year and the average isk prenum calculated in part 1 to obtain the standard deviation of the persunt over this period. (Do not round Intermediate calculations and enter your answer as percent rounded to 2 decimal places, e.g. 32.16.)