You need to estimate the equity cost of capital for XYZ Corp. You have the following data available regarding past returns: a. What was XYZ's average historical return? b. Compute the market's and XYZ's excess retums for each year. Estimate XYZ's beta. c. Estimate XYZ's historical alpha. d. Suppose the current risk-free rate is 2%, and you expect the market's return to be 7%. Use the CAPM to estimate expected return for XYZ Corp's stock: e. Would you base your estimate of XYZ's equity cost of capital on your answer in part (a) or in part (d)? Data table (Click on the following icon- in order to copy its contents into a spreadsheet)