6. Using the Treynor-Black model, calculate the optimal risky portfolio containing the non- zero alpha stocks and the market portfolio. In addition, calculate the total return of the optimal portfolio. Finally, compare the Sharpe Ratio before and after the Active Portfolio is included. (In order to receive marks for this question, you must show all the equations in your answer and show all your work) (40 Points) Beta Inputs TD RBC Manulife SunLife Return Alpha 17.56% 0.11617 18.34% 0.13583 11.96% 0.07869 15.13% 0.10635 Var(e) St dev 1.189 0.013005517 0.1140 0.951 0.03829285 0.1957 0.818 0.088239912 0.2971 0.898 0.105462514 0.3247 6. Using the Treynor-Black model, calculate the optimal risky portfolio containing the non- zero alpha stocks and the market portfolio. In addition, calculate the total return of the optimal portfolio. Finally, compare the Sharpe Ratio before and after the Active Portfolio is included. (In order to receive marks for this question, you must show all the equations in your answer and show all your work) (40 Points) Beta Inputs TD RBC Manulife SunLife Return Alpha 17.56% 0.11617 18.34% 0.13583 11.96% 0.07869 15.13% 0.10635 Var(e) St dev 1.189 0.013005517 0.1140 0.951 0.03829285 0.1957 0.818 0.088239912 0.2971 0.898 0.105462514 0.3247