Year 1: Ally 11% Market 10% risk-free rate 1%

Year 2: Ally 13% Market -3% risk-free rate 2.4%

Year 3: Ally 21% Market 28% risk-free rate 1.6%

Please calculate Ally's CAPM beta (beta) by performing a market model regression of Ally's excess returns over the 3 year period on the market's excess returns over the period and providing the estimated coefficient on excess market return.