Assume that the risk-free rate is 3% and the market risk premium is 8.3%. What is the required return for the overall stock market? Question 21 4 pts Bill Johnson manages a diversified portfolio consisting of a $13,917 investment in each of 19 different common stocks. The portfolio's beta is 1.29. Now suppose Bill decided to sell one of the stocks in the portfolio with a beta or 1.04 for $13,917 and use the proceeds to buy another stock with a beta of 0.68. What would the portfolio's new beta be? Question 22 4 pts Susi has $275,421 invested in a stock with a beta of 0.8 and another $191,858 invested in a stock with a beta of 2.4. If these are the only two investments in her portfolio, what is her portfolio's beta?