Assuming an equally weighted portfolio including the following three stocks (MRK, GOOG and BA), what should ones required return be for this portfolio using the Capital Asset Pricing Model?

Merck & Co. (MRK)- Beta= 0.50

Google Inc. (GOOG)- Beta= 1.14

Boeing (BA)- Beta= 1.03

Note: the 10 year Treasury bond yield is 2.71% (proxy for nominal risk-free rate) and the average return on the market, as measured by the S&P500 is 12.11%.