The risk-free rate is 6% and the expected rate of return on the market portfolio is 11%. a. Calculate the required rate of return on a security with a beta of 1.75. Note: Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places. b. If the security is expected to return 14%, is it overpriced or underpriced? a. Required return b. If the security is expected to return 16%, is it overpriced or underpriced? %