Challenge questions

Not for grades!

These are not essential for learning the material and can be skipped without affecting your grade. If you successfully solve one set of problem, a week of participation activity will be waived (it does not have to be the same week you submit the challenge question). Submit your answer at any time. I will not post solutions for the challenge questions.

• Implement in Stan the hierarchical model for rockets described in the lectures.
• The full data is available at https://github.com/UBC-Stat-ML/web447/raw/main/data/launches.csv
• Describe and implement one improvement to the model.