$\backslash$table$[[,$ter mex cuepeny,Uxa$**$weasary$],[$Year$,$stocks,bills$],[1,3\mathrm{.}958,6\mathrm{.}538],[2,14\mathrm{.}13,4.38],[3,19\mathrm{.}67,4\mathrm{.}25],[4,-14\mathrm{.}61,7\mathrm{.}30],[5,-32\mathrm{.}16,4\mathrm{.}94],[6,37\mathrm{.}32,6\mathrm{.}14]]$

a$.$ Calculate the arithmetic average returns for large$-$company stocks and T$-$bills over this period.

Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.32\mathrm{.}16.$

b$.$ Calculate the standard deviation of the returns for large$-$company stocks and T$-$bills over this period.

Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$9.32\mathrm{.}16.$

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?

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$.,32\mathrm{.}16.$

c$-2.$ Calculate the observed risk premium in each year for the large$-$company stocks versus the T$-$bils. 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 roundad to $2$ decimal places, e$.$g$.32\mathrm{.}16.$

Answer is not complete.

$\backslash$table$[[$a$.$ Large$-$company stocks,$4\mathrm{.}63O,\%$