Under Predict menu in XLMiner, perform a k-nearest neighbors prediction with all the predictors from column A (CRIM) to column B (LSTAT) (excluding the CAT. MEDV, the CAT. MEDV column is the outcome or decision variable for classification) for both training data set and validation data set, trying values of k from 1 to 10 to predict the value MEDV. What is the best k chosen