Assume that you hold a well-diversified portfolio that has an expected return of 11.0% and a beta of 1.20. you are in the process of buying 1,000 shares of alpha corp at $10 a share and adding it to your portfolio. alpha has an expected return of 21.5% and a beta of 1.70. the total value of your current portfolio is $90,000. what will the expected return and beta on the portfolio be after the purchase of the alpha stock? do not round your intermediate calculations.