I am trying to compute a regression analysis formula = y= a +_bX My demand equation is- I wish to determine the effectiveness of the Pfizer covid-19 vaccine. By selecting the number of people vaccinated during the trial phase, price per vial, competitors charging per vial, side effects, future vaccine cost, and how many consumers Pfizer is trying to give a booster vaccine. To? Can the regression analysis be computed with these variables? Please explain and show me how