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Consider the following table for a period of six years:

	Returns
Year	Large-Company Stocks					U.S. Treasury Bills
1			16.29	%		7.61	%
2			26.95			8.15
3			37.55			6.19
4			24.25			6.67
5			7.80			5.61
6			6.89			8.12

Calculate the arithmetic average returns for large-company stocks and T-bills over this time period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)

	Arithmetic average returns
Large-company stock	%
T-bills	%

Calculate the standard deviation of the returns for large-company stocks and T-bills over this time 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 stock	%
T-bills	%

Calculate the observed risk premium in each year for the large-company stocks versus the T-bills. a. 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 % b. 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.) Risk premium standard deviation

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