A confidence interval is a range of values that estimates where the true performance of a metric is likely to fall. It provides context around uncertainty rather than a single point estimate.

Confidence intervals are often used alongside statistical significance.

Examples in Action

  • Understanding variability in test results
  • Comparing overlapping performance ranges
  • Communicating uncertainty to stakeholders
  • Evaluating risk when implementing changes

Typical Outcomes / Results

  • More nuanced interpretation of results
  • Better communication of uncertainty
  • Improved decision-making under variability
  • Reduced overconfidence in marginal outcomes

This glossary entry reflects standard analytical practices in statistics and experimentation.

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