6. Consider the CAPM framework. Suppose that you currently have 40% of your wealth in Treasury Bills, risk-free, and 60% in the four assets below Asseti Er (%) Bl- wi i = 1 8.5 0.2 0.1 i = 13.1 0.8 0.1 i = 16.6 1.2 0.2 i = 4 18.7 1.4 0.2 Let the four assets be traded in a market M with E TM = 1 5% and let the risk-free rate be r f = 4%, answer the following questions: a. Find the expected rate of return and the beta of your current portfolio. b. Now, suppose that you want an expected rate of return of 13%, your strategy is to sell some of your holdings of the risk-free assets and use the proceeds to buy the portfolio market. Find beta of the new portfolio? e. Let us assume that you want to hold only the risk-free asset and the market portfolio. What weights would give you an expected rate of retum of 13%, what is the beta of this new portfolio