Year	IBMs yearly stock return	Yearly return on the S&P500
1999	17.02%	21.04%
2000	-21.21%	-9.10%
2001	13.09%	-1.89%
2002	16.22%	-22.10%

The riskless rate for this period is 3.5%, and the covariance between returns on IBM stock and the S&P500 over this period is 0.02276.

1F. What is IBMs CAPM beta according to this data?

1G. What is IBMs CAPM cost of equity according to this data?

1H. If IBMs debt to equity ratio is 0.57, what is their unlevered cost of equity according to this model?

Please work out by hand not on excel