COSC 410LA S25 Lab 3: Application and Interpretation of Linear Regression

This Lab is due Friday, Sep 19, 2025 at 11:59PM.

Introduction

The goal of this lab is to give you hands on practice applying linear regression to a real world dataset. In particular, we will see how linear regression can be used to explore concrete hypotheses, and how we can intepret the model to come to answers to these hypotheses.

Here are some learning objectives for this lab:

Fit a linear regression model and interpret the learned parameters.
Compute the goodness of a linear regression model and use this to reason about the usefulness of features.
Justify an argument using linear regression

There are 3 parts to this lab. The table below highlights what you are expected to do in each part.

Part	Description	Write code?	Write responses?
1	Introducing the question and dataset	Yes	Yes
2	Operationalizing the question and fitting a model	Yes	Yes
3	More data exploration	Yes	Yes

Provided Files

Lab3.pdf: This file
Lab3.ipynb: Code scaffold for the lab
data.pdf: In data folder, gives a description of data and where to download it

Submission

Lab3.ipynb: With your completed code and answers (1 per group)

Good luck :)