Lab 05

Expanding multiple linear regression

Feb 28, 2025

Welcome

Today’s lab

  • Project
  • Mid-semester survey
  • Lab 05: Expanding multiple linear regression

Project

  • Feedback on your project proposal is posted as an Issue in your project repo

  • Please let your lab TA know if you have any questions

  • Next milestone: Exploratory Data Analysis due March 20

    • Time to work on it in next week’s lab

Mid-semester feedback

  • Purpose: To give the teaching team feedback on what is working well (or not as well) in helping you learn the course content

  • The feedback is anonymous and will not be graded

  • It will be available until Sunday, March 2 at 11:59pm

    • Please take a few minutes to fill it out during lab today

We (the teaching team) appreciate your feedback!

🔗 https://duke.qualtrics.com/jfe/form/SV_88lXoqudX60C9cq

Lab 05: Expanding multiple linear regression

This lab focuses on

  • modeling complex data using variable transformations, categorical predictors and interactions, and various model specifications.

  • evaluating model diagnostics and conditions.

🔗 https://sta221-sp25.netlify.app/labs/lab-05

Reminder: Tips for working on a team

  • Do not pressure each other to finish early; use the time wisely to really learn the material and produce a quality report.

  • The labs are structured to help you learn the steps of a data analysis. Do not split up the lab among the team members; work on it together in its entirety.

  • Everyone has something to contribute! Use the lab groups as an opportunity to share ideas and learn from each other.

🔗 STA 221 - Spring 2025

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Lab 05 Expanding multiple linear regression Feb 28, 2025

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  • Lab 05
  • Welcome
  • Today’s lab
  • Project
  • Mid-semester feedback
  • Lab 05: Expanding multiple linear regression
  • Reminder: Tips for working on a team
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