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	3.98	4.56
2	14.33	4.92
3	19.17	3.84
4	14.51	6.98
5	32.00	5.22
6	37.41	5.36

a.	Calculate the arithmetic average returns for large-company stocks and T-bills over this period.(Round your answers 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 round your final answers 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 average risk premium over this period? (Negative amount should be indicated by a minus sign. Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))

Average risk premium

%

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 round your final answer to 2 decimal places. (e.g., 32.16))

Standard deviation

%