9 min read
Confidence interval in A/B tests: what it really tells you
What a 95% confidence interval tells you in an A/B test, how to read one that crosses zero, and why it beats a bare p-value for ship decisions.
Articles about Confidence intervals
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8 min read
P-value explained for product managers
P-value explained without jargon: what it tells you in an A/B test, what it doesn't, the most common misreadings and how to report results.