Sample size, confidence level and the interpretation of repeated confidence intervals by simulation

What this note covers

1. Solving the margin formula for sample size
2. Planning with a prior proportion
3. Conservative planning when p is unknown
4. Confidence level, precision and cost
5. What repeated-interval simulation shows
6. Comparing simulated designs
7. Interpreting simulation and planning responsibly
8. From precision target to operational sample

8 sections · 10 key terms & formulas · 6 common mistakes