a. Create a Classification Tree with the data from Harrigan. Use the variable Enrolled as your Y- variable. Let HSClubs, HSSports, HSGPA, HSPctile, HSSize, SAT, and Combined Score be your x-variables. Split the tree 5 times. Which variable appears to be the most significant? Take a screen shot and paste your tree in your solution document. (Note: Use 100% of the data as Training Data...no Validation Data) b. Create a Regression Tree with Combined Score as your Y variable. Let HSClubs, HSSports, HSGPA, HSPctile, HSSize, and SAT be your x-variables. Split the tree 5 times. Take a screen shot and paste the tree in your solution document. (Note: Use 100% of the data as Training Data...no Validation Data) The data set for this Homework is in the Homework folder and is named Harrigan