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Reading confidence intervals with product partners
When a confidence interval covers zero, the meeting often splits: analysts want patience; marketers want a story. The productive move is to narrate the interval as a range of plausible effects — not as a coin flip that somehow failed.
A script that keeps dignity
“Our best estimate is a small positive lift, but effects from a mild loss to a mild win are still plausible. Guardrails are calm. Recommendation: do not ship as a proven win; either extend with a pre-registered stop rule or redesign for a larger expected effect.”
Show the decision, not the p-value
Partners remember decisions. Put the recommendation first, then the interval graphic, then the caveats. In Eventfieldbase readouts we ban burying the call-to-action under three slides of methodology.