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? $($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$.,32\mathrm{.}16.$Consider the following table for a period of six years:

a$-1.$ 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$.,32\mathrm{.}16.$