Download the ECustomer.xlsx data, import it into R and create a decision tree in R using the tree function. The tree should predict whether a customer will make additional purchase or not $($that means, your response is AdditionalPurchaseDecision$).$ Use the tree to answer the following questions.

What is the likelihood of a customer making an additional purchase if their initial satisfaction level is $2$ and product quality is $3?$

Question $3$Answer

a$.$

No

b$.$

Yes