Just Released: The Conversion Gap! Our latest research shows why even top brands fail to convert.

Fibr ai logo

Agents

Solutions

Resources

Back to Glossary

Confidence Interval

Confidence Interval represents the range within which you expect an experiment’s true result to fall. It helps quantify uncertainty and shows how reliable your data is. In A/B testing, a narrow confidence interval signals strong reliability in your measured lift or impact.

When you use confidence intervals in testing, you better understand whether your variation results are meaningful or just noise. This allows you to make decisions grounded in data, improving your optimization outcomes with clarity and precision.