- Thought Experiment: Sample 3 students at random and get their (sample) mean age.
- Question: What value quantifies how much these sample means vary by?
- Answer: The standard error.
|Random Sample||(Sample) Mean Age|
|Jack, Jared, Sam||21.7|
|Wengel, Rebecca, Steven||19.4|
|Stefan, Joccelyn, Sierra||20.0|
- Slides: Tying the concepts of standard errors and confidence intervals together.