Instructions: Complete the following exercise in SAS Enterprise Miner (EM) and retain answers to all questions for future reference. 1. Use the File Import node (found under the Sample tab) to bring CHURNExcel into EM. Use Help if you need assistance or more information on the File Import node. 2. Check the Churn Data Dictionary to ensure that variables have been defined (role/level) correctly by EM. 3. Run the File Import node. 4. Use the SAS concepts like decisions trees and regression to build models to predict churn, or customers who will terminate their accounts after a promotional period. Complete the table below showing your top three models. 5. Of the models listed in #5, which is your best model? Why