How does the Shapiro Wilk Calculator work?

Test statistic W = (Σ ai X(i))² / Σ(Xi - X̄)² Then: W close to 1: normal; W far from 1: non-normal Then: Best for small-medium samples (n < 5000) Then: p-value: reject normality if p < 0.05.

Can you give an example of how to use the Shapiro Wilk Calculator?

Example: Input Normality test data gives a result of SW statistic.

Is the Shapiro Wilk Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Shapiro Wilk Calculator?

Our Shapiro Wilk Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

数学

Shapiro Wilk Calculator

Shapiro-Wilk Test

Data (comma-separated)

Applies Shapiro-Wilk test specifically for testing normality. Most powerful normality test.

Symbol	Name	Unit	Description
W	(Σ ai X(i))² / Σ(Xi - X̄)²	—	(Σ ai X(i))² / Σ(Xi - X̄)²
X	X value	—	Variable used in the calculation
Xi	Xi value	—	Variable used in the calculation

Difficulty:intermediate

⭐

Did You Know?

Shapiro-Wilk test most widely used for normality testing in statistics software.

References

›Shapiro-Wilk Test

🔒

100% 無料

登録不要

✓

正確

検証済み数式

⚡

即座

即座に結果を表示

📱

モバイル対応

全デバイス対応

Shapiro Wilk Calculator

Shapiro-Wilk Test

とは何か Shapiro Wilk Calculator?

公式

変数の説明

方法 Shapiro Wilk Calculator

解いた例

実際の応用

よくある質問

避けるべきよくある間違い

設定