4. The following information is provided for a stock market: Stock A Stock B Market portfolio 50% 60% 20% 0.6 -0.2 1.0 Assume the T-bill rate is 5%. Also assume that if the economy is in a good condition, the rate of return on the market will be 10%, if the economy is in an unfavourable condition, the rate of return on the market will be 6%. a. What is the expected rate of return if the market return is equally likely to be 10% or 6%? b. Calculate the beta coefficients for the two securities from the given information. c. You are told that the mean rates of return for securities A and B are 7.5% and 4.6% respectively. What would you infer from this information in the context of the Capital Asset Pricing Model? d. Draw the SML for this economy and plot the two securities on the SML graph. e. What hurdle rate should be used by the management of firm A (the company that issues stock A) for a project with the risk characteristics of stock B?