Using the CAPM model, calculate the cost of equity capital for each of the following situations:

a. Risk-free rate is 6 percent, expected market return is 11 percent, \(\beta\) is 0.75

b. Risk-free rate is 6 percent, expected market return is 11 percent, \(\beta\) is 0.90

c. Risk-free rate is 6 percent, expected market return is 11 percent, \(\beta\) is 1.20

d. Risk-free rate is 6 percent, expected market return is 11 percent, \(\beta\) is 0.00

e. Risk-free rate is 6 percent, expected market return is 11 percent, \(\beta\) is 1.00