Sample Size for Two Proportions: Sizing an A/B Test
This lesson is part of the course
In this lesson
For a checkout redesign you derive the target conversion rate, compare the unpooled and the pooled sample-size formula and build a table that shows how the needed traffic explodes for small lifts.
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Lessons in this course
- Margin of Error & Sample Size for a Mean Locked
- Sample Size for a Proportion & the Finite Population Correction Locked
- Effect Size: Pooled SD, Cohen's d & the Minimum Detectable Effect Locked
- Sample Size for Comparing Two Means (NORM.S.INV) Locked
- Sample Size for Two Proportions: Sizing an A/B Test Locked
- The Power Curve: Power vs Sample Size (Scatter Chart) Locked
- Power and Minimum Detectable Effect for a Fixed Sample Size Locked
- Practical Adjustments: Bonferroni, Unequal Allocation, Dropout & Non-Response Locked