b) Z PLC is an all equity financial company whose shares are listed on the ZSE. It has paid dividend per share of the past 5 years. 2 Year Dividend 1 7.5p 4 10.4 8.5p 8.7p 12p If the current market price per share is 2.40. The company financial analyst has collected own the returns of ZPLO's shares and those of the financial times all the share of the past 5 years. An estimated company's beta factor 70% (0.7). this analyst has also estimated the average return on all index to be 15% of the return of the treasury bills to be 8%. Given the above information calculate Z's cost of capital with CAPM