How to read experiment results without fooling yourself. Confidence intervals, p-values, multiple testing, sequential testing, CUPED, heterogeneous treatment effects, ratio metrics, network effects, dashboard reconciliation, and the interpretation failures that produce confidently wrong shipping decisions.
Install
npx skills add rampstackco/claude-skills --skill experimentation-analyticsnpx skills add rampstackco/claude-skills --skill experimentation-analytics -a claude-code -gnpx skills add rampstackco/claude-skills --skill experimentation-analytics -a codex -ggemini skills install https://github.com/rampstackco/claude-skills.git --path skills/experimentation-analyticsgh skill install rampstackco/claude-skills experimentation-analyticsgit clone --depth 1 https://github.com/rampstackco/claude-skills /tmp/rampstackco__claude-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/rampstackco__claude-skills/skills/experimentation-analytics ~/.claude/skills/experimentation-analytics # Claude Code
cp -R /tmp/rampstackco__claude-skills/skills/experimentation-analytics ~/.agents/skills/experimentation-analytics # Codex, Cursor, Gemini CLI, Copilot, OpenCode