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	3.70%	4.78%
2	14.36	3.61
3	19.35	4.20
4	14.33	5.92
5	31.82	5.40
6	37.06	5.41

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-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?____%

T Bills? ____%

b. Large company stocks? ___%

T Bills?____%

c1. Average risk premium?___%

c2. SD?___%