- experiment results compute a two-proportion z-test p-value + 95% CI per
variant vs control (significant = p<0.05); shown in the archive detail view
and used to label the leader honestly.
- evening brief: getExperimentBriefSummary feeds active-experiment results
(leader, lift, p-value, significance) into the brief metrics; prompt tells
the LLM to surface only statistically significant winners, not noisy lifts.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>