Problem 18.1 (a) Based on current dividend yields and expected capital gains, the expected rates of return on portfolios A and B are 12% and 16%, respectively. The beta of A is 0.7, while that of B is 1.4. The T-bill rate is currently 5%, whereas the expected rate of return of the S&P 500 index is 13%. The standard deviation of portfolio A is 12% annually, that of Bis 31%, and that of the S&P 500 index is 18%. By how much does the alpha of portfolio A exceed the alpha of portfolio B? (Enter your answer in percentage points. Round your answers to 1 decimal place.) QUESTION 2 Problem 18.1 (b) Based on current dividend yields and expected capital gains, the expected rates of return on portfolios A and B are 12% and 16%, respectively. The beta of A is 0.7, while that of B is 1.4. The T-bill rate is currently 5%, whereas the expected rate of return of the S&P 500 index is 13%. The standard deviation of portfolio A is 12% annually, that of Bis 31%, and that of the S&P 500 index is 18%. If you could invest only in T-bills and one of these portfolios, would you choose Portfolio A? O Yes O No