Problem $11-6$ Risk Premiums $($LO$1)$

Assume these are the stock market and Treasury bill returns for a $5-$year period:

$\backslash$table$[[$Year$,$Stock Market Return $(\%),\backslash$table$[[$T$-$Bill$],[$Return $(\%)]]],[2016,34\mathrm{.}50,0\mathrm{.}16],[2017,14\mathrm{.}20,0\mathrm{.}16],[2018,-4\mathrm{.}10,0\mathrm{.}16],[2019,15\mathrm{.}30,0\mathrm{.}03],[2020,24\mathrm{.}60,0\mathrm{.}05]]$

Required:

a$.$ What was the risk premium on common stock in each year?

b$.$ What was the average risk premium?

c$.$ What was the standard deviation of the risk premium? $($Ignore that the estimation is from a sample of data.$)$

Complete this question by entering your answers in the tabs below.

Required A

Required B

Required C

What was the risk premium on common stock in each year?

Note: Do not round intermediate calculations. Enter your answers as a percent rounded to $2$ decimal places. Negative values should be entered with a negative sign.

$\backslash$table$[[$Year$,$Risk Premium$],[2016,\%$