6. Portfolio risk and return Emma holds a $7,500 portfolio that consists of four stocks. Her investment in each stock, as well as each stock's beta, is listed in the following table: Stock Investment Beta Standard Deviation Perpetualcold Refrigeration Co. (PRC) $2,625 0.90 9.00% Kulatsu Motors Co. (KMC) $1,500 1.50 11.50% Water and Power Co. (WPC) $1,125 1.15 18.00% Flitcom Corp. (FC) $2,250 0.30 22.50% If the risk-free rate is 4% and the market risk premium is 5.5%, what is Emma's portfolio's beta and required return? Fill in the following table: Beta Required Return Emma's portfolio