Biostat 212a Homework 4

Due Mar. 10, 2026 @ 11:59PM

Author

YOUR NAME and UID

Published

March 3, 2026

1 ISL Exercise 8.4.3 (10pts)

2 ISL Exercise 8.4.4 (10pts)

3 ISL Exercise 8.4.5 (10pts)

4 ISL Lab 8.3. Boston data set (30pts)

Follow the machine learning workflow to train regression tree, random forest, and boosting methods for predicting medv. Evaluate out-of-sample performance on a test set.

5 ISL Lab 8.3 Carseats data set (30pts)

Follow the machine learning workflow to train classification tree, random forest, and boosting methods for classifying Sales <= 8 versus Sales > 8. Evaluate out-of-sample performance on a test set.