Ab Test Calculator
Calculate ab test — z-score and significance for hypothesis tests.
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Z-Score
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Significance (α=0.05)
Recent Calculations
What Is Ab Test?
Ab Test computes the z-score for a one-sample test and determines significance at α = 0.05.
Formula
z = (x̄ − μ) / (σ/√n)Frequently Asked Questions
When is the result significant?
At α = 0.05, |z| ≥ 1.96 indicates statistical significance (two-tailed).