6. Train a fine tree model ( minimum leaf size of 4) to predict AveSpeed using predictor variables Distance, TimeOfDay, and DayOfWeek. What is the training RM SE? Provide at least two decimal places....

Extracted text: 6. Train a fine tree model ( minimum leaf size of 4) to predict AveSpeed using predictor variables Distance, TimeOfDay, and DayOfWeek. What is the training RM SE? Provide at least two decimal places. NOTE: If you're using the Regression Learner App, don't close it. If you're using code, do not delete or overwrite your models as you proceed through the questions. You'll use them again in other questions. Enter answer here