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.

If a customer's initial satisfaction level is $2,$ what factors, such as customer service experience, product quality, or timely delivery, influence their decision to make an additional purchase?

Question $4$Answer

a$.$

product quality

b$.$

customer service experience

c$.$

timely delivery,