statistical-analysis

Descriptive statistics, trend analysis, outlier detection, hypothesis testing, and guidance on when to be cautious about statistical claims.

Choose the right measure of center based on the data:

| Symmetric distribution, no outliers | Mean | Most efficient estimator | | Skewed distribution | Median | Robust to outliers | | Categorical or ordinal data | Mode | Only option for non-numeric | | Highly skewed with outliers (e.g., revenue per user) | Median + mean | Report both; the gap shows skew |

記述統計、傾向分析、外れ値検出、仮説検定などの統計手法を適用します。分布の分析、有意性のテスト、異常の検出、相関関係の計算、または統計結果の解釈を行うときに使用します。 ソース: anthropics/knowledge-work-plugins。