Excel

2. Briefly comment on the regression coefficient of X1 (dummy for Dem/Rep), for your stock, giving its value and sign (+/). Interpret the sign - which party has a positive effect on your chosen stock? For AAPL, the coefficient was about -2.19 , negative sign, meaning that a Democratic administration seems to have negative effect on AAPL returns (the inference is that Republican has positive effect, meaning AAPL has higher returns when a Republican president is in office), You can put your comment on the Excel spreadsheet, next to the regression output