Normal America, Inc. (NA), has paid a year-end dividend every year for the past 10 years, as shown in the table below:

Anne	Share price as of December 31.	Dividend of December 15. per share	SP500 performance
2010	33.00
2011	30.69	2.50	4.7%
2012	35.38	2.50	16.2%
2013	42.25	3.00	31.4%
2014	34.38	3.00	-3.3%
2015	36.25	1.60	30.2%
2016	32.25	1.40	7.4%
2017	43.00	0.80	9.9%
2018	42.13	0.80	1.2%
2019	52.88	1.10	37.4%
2020	55.75	1.60	22.9%

has. Calculate the beta of NA relative to SP500.

b. Suppose that the interest rate on Treasury bills is 5.5% and that the expected return on the market is E ( rm ) = 13%. If the corporate tax rate is Tc = 3%, calculate NA's cost of equity using the CAPM model.

vs. Let's assume that NA's debt cost is 8%. If the company is financed with one-third equity and two-thirds debt, what is its weighted average cost of capital using the CAPM model?