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
RSS feedArticles for product managers and marketers about Confidence intervals: plain explanations, examples and common mistakes.
8 min read
P-value meaning: what a p-value tells you in an A/B test
P-value explained in plain words: the p-value meaning in an A/B test, what p < 0.05 says about statistical significance, and what it doesn't.