Suppose you are the money manager of a $4 million investment fund. The fund consists of 4 stocks with the following investments and betas. (Round all percentages to 2 decimal points. Example.11578 = 11.58%) Stock Investment in dollars Weight of investment Beta 'Investments weighted beta Apple $120,000 .6 11 11 Amazon $130,000 1.4 11 Google $150,000 1.1 11 Berkshire Hathaway $400,000 .1.5 What is the portfolio beta? If the market required rate of return is 12.2% and the risk-free rate is 1.8% then what is the fund's required rate of return