The dataset Chemical Reaction provides the yield measurements (Y) for many runs of a chemical reaction. The variables used were temperature in centigrade (X1), percent concentration of primary reactant (X2) and the duration of the reaction measured in hours (X3). a. Find the equation of the linear model that can be used to predict y using X1, X2 and X3. b. Perform a hypothesis test to determine if the model is significant. Use a = .05 c. Test each of the X terms in the model. d. Check the assumptions for the model.