Using the data in the StudentSurvey dataset (scroll down in this link: https:/www.lock5stat.com/datapage2e.html c ) , we wish to find the best model to predict GPA using the following variables or a subset of them: Exercise TV Height BirthOrder VerbalSAT . MathSAT Pulse . Piercings Start with a model to predict GPA using all 8 predictor variables. Work from there to choose what you think is the best model, using some or all of these variables. Justify your answer. Explain why you believe the model you selected is the best choice from among the potential predictors