Given the spreadsheet below, calculate the portfolio beta and the expected return on this two stock portfolio using the CAPM. a. If the weights were 50/50, would this increase or decrease the portfolio return? b. If the market's expected return had been 8% with the 60/40 weights, would this increase or decreased the portfolio return? The Market's Expected Return 9% The Risk Free Rate 2.50% Beta for Bateman Industires 0.98 Beta for Advanced Solar Arrays 1.34 Weight for Bateman 60% Weigh for Solar Arrays 40% Portfolio Beta Expected Return on the Portfolio