possible EPS and optimal debt ratio Williams Glassware has estimated, at various debt ratios, the expected earnings per share and the standard deviation of the earings per share as shown in the following table. (Click on the icon located on the top-right corner of the data table below in order to copy its contents into a spreadsheet) Debt ratio Earnings per share (EPS) Standard deviation of EPS 0% $227 $115 20 302 1.77 40 3 48 2.84 60 3.94 3.92 80 3.81 5.56 a. Estimate the optimal debt ratio on the basis of the relationship between earnings per share and the debt ratio. You will probably find it helpful to graph the relationship b. Graph the relationship between the coefficient of vanation and the debt ratio Label the areas associated with business risk and financial risk a. Estimate the optimal debt ratio on the basis of the relationship between earnings por share and the debt ratio Maximum EPS appears to be at debt ratio, with per share earnings (Select from the drop-down menus.) b. The coefficient of variation for a debt ratio of 0% is (Round to two decimal places) The coefficient of variation for a debt ratio of 20% is Round to two decimal places) The coefficient of variation for a debt ratio of 40% is (Round to two decimal places) The coefficient of variation for a debt ratio of 60% is (Round to two decimal places) The coefficient of variation for a debt ratio of 80% is (Round to two decimal places)