Problem 13-18 Reward-to-Risk Ratios [LO4] Stock Y has a beta of 1.2 and an expected return of 15.3 percent. Stock Z has a beta of .8 and an expected return of 10.7 percent. If the risk-free rate is 6 percent and the market risk premium is 7 percent, the reward-to-risk ratios for Stocks Y and Z are the SML reward-to-risk is percent, Stock Y is and percent, respectively. Since and Stock Z is (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)