$1)$ Use ISLR$2$ library and OJ data to apply Decision Tree method for developing a prediction model using Purchase as response variable. The lecture video link provides steps for developing decision tree prediction model. Before starting this assignment, it will be a good idea to go over and practice the steps shown in the lecture video. Use following lines to get started:

library$($ISLR$2)$

str$($OJ$)$

$?$OJ

$2)$ Record and upload a $5$ minute PowerPoint presentation with narration based on your analysis. Focus should be on factors impacting Purchase and model performance. Number of slides should be no more than $6$ that includes the title slide with student name. For steps to record PowerPoint presentation with narration, see video links below.