Consider the following rates of return:

Year	Large-Company Stocks			US Treasury Bills
1	3.66	%		4.66	%
2	14.44			2.33
3	19.03			4.12
4	14.65			5.88
5	32.14			4.90
6	37.27			6.33

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.)

	Average returns
Large-company stocks	%
T-bills	%

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.)

	Standard deviation
Large-company stocks	%
T-bills	%

c-1.

Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. What was the arithmetic 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.)

Average risk premium

%