2A few years ago, the Value Line Investment survey reported the following market betas for the stocks of selected healthcare providers:
- Company - Beta
- Quorum Health Group 0.90
- Beverly Enterprises 1.20
- HealthSouthCorporation 1.45
- United Healthcare 1.70
at the time thesebetas were developed, reasonable estimates for the risk-free rate,RF,and required rate of return on the market, R (Rm),were 6.5% and 13.5 % respectively.
(a) what are the required rates of return on the four stocks?
(b) why do their required rates of retuen differ?
(c) Suppose that a person is planning to invest in only one stock rather than a well-diversified stock portfolio.Are the required rates of return calculated above applicable to the investment?Explain your answer