Problem 6-19 You manage a risky portfolio with an expected rate of return of 18% and a standard deviation of 29%. The T-bill rate is 5%. Your client's degree of risk aversion is A = 2.5, assuming a utility function U= 0 - Ao?. a. What proportion, y, of the total investment should be invested in your fund? (Do not round Intermediate calculations. Round your answer to 2 decimal places.) Investment proportion y % b. What is the expected value and standard deviation of the rate of return on your client's optimized portfolio? (Do not round Intermediate calculations. Round your answers to 2 decimal places.) Expected return Standard deviation