h11 i Help Saved Save & Ex Che Assume these are the stock market and Treasury bill returns for a 5-year period: Stock Market T-Bill Return Return (%) (%) Year 2013 31.7 0.02 2014 10.9 0.02 2015 -1.6 0.02 2016 13.0 e.2e 2017 21.3 0.80 Required: a. What was the risk premium on common stock in each year? (Negative values should be entered with a negative sign.) 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? (Do not round intermediate calculations. Enter your answers as a h11 i Help Save & Ex Saved Che 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? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Year Risk Premium 2013 2014 0% 2015 % 2016 % 2017 Required B Required B