1. Suppose you wanted to predict Winnings ($) using only the number of poles won (Poles), the number of wins (Wins), the number of top five finishes (top 5), or the number or cop ten finishes (Top 10). Which or these four variables provides the best sing e predi-tor of winnings? (20%) 2. Develop an estimated regression e uation that can be used to predict Winnings ($) given the number of poles won ( oles) the number of wins (Wins). the number of top five finishes (Top 5), and the number of top ten finishes (Top '0). Test for individual significance and discuss your findings and conc.usions. (20%)