Lecture Materials for Week 5
September 22, 2025
Sampling
Slide deck
Confidence intervals
Slide deck
References
The data used in the CI slide deck comes from this study: Chetty and colleagues (2017).
Extra practice (optional)
- This activity offers extra practice with estimating confidence intervals for a mean.
- This activity offers extra practice with estimating confidence intervals for a proportion — and also provides an introduction to statistical power.
- This activity explores the dangers of biased sampling.
- This activity explores the dangers of extreme samples when sample size is small.