Sample size calculator
Two-proportion sample size estimate using normal approximation. Tune baseline conversion, minimum detectable effect, target power, and number of variants — output is per-variant N, total N, and an ETA chip given an expected daily volume.
Production answer
Sample size calculator is a reusable Oak Flats Muffler Men UI primitive with documented states, accessibility expectations, theme behavior, and implementation evidence.
Primary CTAReview Sample size calculator states
Generative search brief
Sample size calculator: Two-proportion sample size estimate using normal approximation. Tune baseline conversion, minimum detectable effect, target power, and number of variants — output is per-variant N, total N, and an ETA chip given an expected daily volume.
- Required N / variant
- 19.3k
- Total N
- 38.7k
- Power
- 80%