[ CHAPTER · §5.3 ]
A/B Test Sample Size
Calculator sample size per variant untuk valid A/B test. Statistical significance 95%, power 80%.
Formula + tentang MDE
Sample size formula: n = (Zα/2 + Zβ)² × (p1(1-p1) + p2(1-p2)) / (p1 - p2)². MDE = relative lift. Contoh: baseline 3%, MDE 20% → target rate 3.6%. MDE rendah = sample size besar (lebih sensitive).
[ NOTE ] Tool runs client-side. Tidak ada tracking. No affiliate. Output for reference — verify untuk decision penting.