A/B Test Significance Calculator
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Verdict
Significant
Experiment scoreboard
A
3.00%
144 conversions
4,800 visitors
B
3.75%
180 conversions
4,800 visitors
Two-tailed p-value0.042
Decision thresholdp < 0.05
- Relative lift (B vs A)
- 25.0%
- Rate difference
- 0.75 pts
- z-score
- 2.03
- Test
- Two-proportion z-test
Fixed sample · independent visitors · no repeated early stopping
