Problem 5 The Treasury bill rate is 4 percent, and the expected return on the market port- folio is 12 percent. Using the capital asset pricing model: a. Draw a security market line. b. What is the risk premium on the market? c. What is the required return on an investment with a beta of 1.5? d. If an investment with a beta of 0.8 offers an expected return of 9.8 percent, does it have a positive NPV? e. If the market expects a return of 11.2 percent from stock X, what is its beta