Consider the following table for a period of six years.

	Returns
Year	Large-Company Stocks					U.S. Treasury Bills
Year 1			14.79	%		7.31	%
Year 2			26.50			8.00
Year 3			37.25			5.89
Year 4			23.95			5.17
Year 5			7.20			5.46
Year 6			6.59			7.67

Requirement 1:

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

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

Requirement 2:

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

	Standard deviation
Large-company stock	%
T-bills	%

Requirement 3:
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? (Negative amount should be indicated by a minus sign. Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).)

Risk premium

%

(b)	What was the standard deviation of the risk premium over this period? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).)

Risk premium standard deviation

%