Statistical Significance Calculator

Import a FullStory funnel CSV or enter data manually to evaluate statistical significance

Hypothesis iTwo-sided tests check whether a variant performs differently in either direction. One-sided only tests for improvement.
Confidence iHow confident you need to be that the observed difference is real and not due to random chance.
Adjusts significance threshold when comparing 3+ variants to reduce false positives (Bonferroni correction)
CSV Import
Manual Entry

Drag & drop a FullStory funnel CSV here

or browse for file

Enter visitors (total) and conversions for each variant.