For the following questions, assume that you manage a risky portfolio with an expected rate of return of 18% and a standard deviation of 26%. The T-bill rate is 7%. 3. You have a risky portfolio that yields an expected rate of return of 15% with a standard deviation of 25%. Draw the CAL for an expected return/standard deviation diagram if the risk free rate is 5%. a. What is the slope of the CAL? b. If your coefficient of risk aversion is 5, how much should you invest in the risky portfolio