The amazon WACC is 11.62
CAPM method,
ke = Rf +\beta (Rm-Rf)
Where,
Ke = Cost of Equity
Rf = Risk-free rate is the risk-free rate used has been the short-term 3-month rate (13-week) Treasury bill rate.
Beta = calculated as the slope of the regression line (given)
Rm = expected market return that is historically used since 1926.
Ke= 0.11+1.1634(10-0.11)
Ke= 11.62
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