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

Year	Large-Company Stocks	US Treasury Bills
1	3.95%	6.53%
2	14.13	4.38
3	19.07	4.25
4	-14.61	7.30
5	-32.10	4.94
6	37.32	6.14

a. Calculate the arithemetic 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 for 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		%
c-2. Standard deviation		%