The market is expected to generate a 11% return and the risk free rate is 4%. A portfolio manager has 80% of her capital allocated to stock A with a beta of 0.9, which generated a total return of 12%. 20% of her capital is allocated to stock B with a beta of 1.3, which generated a total return of 13%. What Alpha was generated by the manager by allocating more capital to stock A?

Please explain step by step.