15 IT If a mock went down from $36.00 to $32.25 last week, and the S&P 500 (representing the market we up from 2,300 to 2,450 last weok, what would be the implied beta for the work of this is the only information you have)? -1.60 -1.78 2 -1.71 d. -0.53 e-0.87