2. Think the single-index model. The alpha of a stock is 0 percent. The expected return on the market is 12 percent. The risk-free rate of return is 6 percent. The expected return on the stock exceeds the risk free rate by 10%. What is the beta of the stock?
3. You estimate an index (CAPM) model running a regression of rHP - rf on a constant and rM - rf where HP stands for Hewlett-Packard. That is you run the model.
a. What is beta for HP?
b. What is alpha for HP?
c. What is the covariance between the RM series and the e HP series?
d. What is the standard deviation of the returns on HP stock?