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

Year	Large Company	US Treasury Bill
1	3.69%	4.75%
2	14.48	3.59
3	19.27	4.18
4	–14.41	5.91
5	–31.90	5.32
6	37.51	6.41

a.	Calculate the arithmetic average returns for large-companystocks and T-bills over this period. (Do not roundintermediate calculations and enter your answers as a percentrounded to 2 decimal places, e.g., 32.16.)
b.	Calculate the standard deviation of the returns forlarge-company stocks and T-bills over this period. (Do notround intermediate calculations and enter your answers as a percentrounded to 2 decimal places, e.g., 32.16.)
c-1.	Calculate the observed risk premium in each year for thelarge-company stocks versus the T-bills. What was the average riskpremium over this period? (A negative answer should beindicated by a minus sign. Do not roundintermediate calculations and enter your answer as a percentrounded to 2 decimal places, e.g.,32.16.)
c-2.	Calculate the observed risk premium in each year for thelarge-company stocks versus the T-bills. What was the standarddeviation of the risk premium over this period? (Do notround intermediate calculations and enter your answer as a percentrounded to 2 decimal places, e.g., 32.16.)