Solve for part D only. Also, please show your work/formulas in excel and thank you.

Expected Monthly Return Expected Monthly Return PG Microsoft BAC Exxon 0.010848 0.014854 0.011589 0.012043 Variance Variance PG Microsoft BAC Exxon 0.004478 0.012820 0.005611 0.002820 Covariance COX(PG, Microsoft) Cox(PG, BAC) Cov(PG, Exxon Cox(Microsoft, BAC) Cox(Microsoft Exxon) COX BAC, Exxon) -0.000649 0.000683 0.000433 0.001681 0.000804 0.000757 For questions (b), (c), and (d), we assume that investors invest in the risk-free asset and 4 risky assets (PG, Microsoft, BAC, and Exxon). (6) Find the optimal investment portfolio in the risky assets. What are the mean and s.d. of the returns of this portfolio? (c) Find the global minimum variance portfolio. What is the expected return and variance of return of this portfolio? (d) What would be the capital allocation between the risk free asset and the optimal risky investment portfolio for an individual with risk aversion coefficient of 3? If the initial investment is $100,000, how much money should the investor allocate to each of the 5 assets (risk free asset and 4 risky assets). Expected Monthly Return Expected Monthly Return PG Microsoft BAC Exxon 0.010848 0.014854 0.011589 0.012043 Variance Variance PG Microsoft BAC Exxon 0.004478 0.012820 0.005611 0.002820 Covariance COX(PG, Microsoft) Cox(PG, BAC) Cov(PG, Exxon Cox(Microsoft, BAC) Cox(Microsoft Exxon) COX BAC, Exxon) -0.000649 0.000683 0.000433 0.001681 0.000804 0.000757 For questions (b), (c), and (d), we assume that investors invest in the risk-free asset and 4 risky assets (PG, Microsoft, BAC, and Exxon). (6) Find the optimal investment portfolio in the risky assets. What are the mean and s.d. of the returns of this portfolio? (c) Find the global minimum variance portfolio. What is the expected return and variance of return of this portfolio? (d) What would be the capital allocation between the risk free asset and the optimal risky investment portfolio for an individual with risk aversion coefficient of 3? If the initial investment is $100,000, how much money should the investor allocate to each of the 5 assets (risk free asset and 4 risky assets)