Answer:
No, you should not buy the it, Rate of 11% does not fully compensate your risk associated with the Beta 1.2. On this beta you should expect 12.2% return. Any other stock with lower risk might be acceptable for 11% return.
Step-by-step explanation:
Capital asset pricing model measure the expected return on an asset or investment. it is used to make decision for addition of specific investment in a well diversified portfolio.
Formula for CAPM
Expected return = Risk free rate + beta ( market risk premium )
Expected return = 5% + 1.2 ( 6% )
Expected return = 5% + 7.2%
Expected return = 12.2%