Problem 11-17 Using CAPM [LO 4] A stock has a beta of 1.21 and an expected return of 11.9 percent. A risk-free asset currently earns 3.85 percent. Required: (a) What is the expected return on a portfolio that is equally invested in the two assets? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g. 32.16).) Expected retum % (b) If a portfolio of the two assets has a beta of 0.81, what are the portfolio weights ? (Do not round Intermediate calculations. Round your answers to 4 decimal places (0.9.. 32.1616).) Weight of the stock Weight of the risk-free asset (c) a portfolio of the two assets has an expected return of 11.1 percent, what is its beta? (Do not round Intermediate calculations. Round your answer to 2 decimal places (0.9. 32.16).) Beta (d) If a portfolio of the two assets has a beta of 2.41, what are the portfolio weights? (Negative amounts should be indicated by a minus sign. Do not round Intermediate calculations. Round your answers to 4 decimal places (e.g., 32.1616).) Weight of the stock Weight of the risk-free asset