Consider the following customer: Age = 40, Experience = 10, Income = 84, Family = 2, CCAvg = 2, Education = 2, Mortgage = 0, Securities Account = 0, CD Account = 0, Online = 1, and Credit Card = 1. Perform a k-NN classification with all predictors (except ID and ZIP code) using k = 10. Required:
a. How would this customer be classified?
b. What is a choice of k that balances between and ignoring the predictor information?
c. Show the classification matrix for the validation that results from using best k.