20. About this section
21. Statistics, population, means and proportions
22. Confidence intervals and margin of error
23. Normal distribution and Central Limit Theory
24. Empirical rule
25. Mean or proportion?
26. ACTIVITY: Calculating confidence intervals
27. Null hypothesis and alternative hypothesis
28. Set up criteria for decision
29. Sampling like a pro
30. Common mistakes
31. Section wrap-up
Quiz