3) You are given the following information about three stocks. Stock Beta Required Rate of Return Grit Inc. 2.00 21.4% Integra Corp 0.50 9.7% Probity Corp 0.93 a) Compute the market risk premium and risk-free rate of return b) Compute the required rate of return on the Probity Corp, stock. c) Suppose the required rate of return on Grit Inc. stock decreased to 19.8% suddenly, but there was no change in its beta or the risk-free rate. How would this change affect the required rate of return on Probity stock? Compute the new required rate of return on Probity stock