Please Explain and include excel formulas

2 points What is the Sharpe ratio of the portfolio containing 40% SPDR and 60% Retail? Type your answer... 2 points As for the complete portfolio containing SPDR, retail, and risk-free asset, which portfolio is most consistent with your own personal risk preference? Provide the weight on the optimal risky portfolio for that portfolio (in \%, ranging from 0 to 150). Again, no right or wrong answer here. Type your answer... 2 points For the following two questions, it is recommended that you create a duplicate tab by copying the worksheet you've worked on. In the new tab, we will conduct a bit of scenario analysis. What if the market portfolio (S\&P) was riskier? Try changing the value of annualized standard deviation from 12% to 15% for S\&P. It will generate new optimal risky portfolios. For the new optimal risky portfolio containing the market and LQD, has the weight on SPDR increased or decreased? 2 points What is the Sharpe ratio of the portfolio containing 40% SPDR and 60% Retail? Type your answer... 2 points As for the complete portfolio containing SPDR, retail, and risk-free asset, which portfolio is most consistent with your own personal risk preference? Provide the weight on the optimal risky portfolio for that portfolio (in \%, ranging from 0 to 150). Again, no right or wrong answer here. Type your answer... 2 points For the following two questions, it is recommended that you create a duplicate tab by copying the worksheet you've worked on. In the new tab, we will conduct a bit of scenario analysis. What if the market portfolio (S\&P) was riskier? Try changing the value of annualized standard deviation from 12% to 15% for S\&P. It will generate new optimal risky portfolios. For the new optimal risky portfolio containing the market and LQD, has the weight on SPDR increased or decreased