able[[Year,Returns],[Large-Company Stocks, able[[U.S. Treasury],[Bills]]],[1,-15.29%,7.41%
Returns U.S.Treasury Large-Company Stocks Bills -15.29% 7.41% -26.65 8.05 37.35 5.99 24.05 5.67 -7.40 5.51 6.69 7.82
Year
2 3 4 5 6
a-1. Calculate the arithmetic average returns for large-company stocks and T-bills over this time period.
a-2. Calculate the standard deviation of the returns for large-company stocks and T-bills over this time period. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.
Large-company stocks ? %
T-bills %
a-1.Arithmetic average return a-2.Standard deviation
%
Calculate the observed risk premium in each year for the large-company stocks versus the T-bills
b-1.What was the arithmetic average risk premium over this period? Note: 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. b-2.What was the standard deviation of the risk premium over this period? Note:Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places,e.g.,32.16.
b-1.Average risk premium b-2. Risk premium standard deviation
%
%