Answer:
SDA Corp. stock's alpha is -0.75%
Step-by-step explanation:
If we consider that the market risk premium is equal to:
15% - 8% = 7%
We can say that X would have a return of
X = 8% + 1.25 * 7% = 16.75%
at 16%, X having a negative alpha is as follows:
16% - 16.75% = - 0.75%