Free Wilcoxon Signed-Rank Calculator
Non-parametric paired comparison test.
W Statistic
23
W-23
Z Approximation-1.2551
W Statistic vs Non-Zero Pairs
Wilcoxon Signed-Rank Test
W = min(W+, W-)
Rank absolute differences, sum positive and negative ranks separately.
Example Calculation
12 pairs, W+=55.
- 01W- = 78-55 = 23
- 02W = min(55,23) = 23
Frequently Asked Questions
Learn More
Understanding the Normal Distribution
Learn what the normal distribution is, why it matters in statistics, and how to use the bell curve for probability calculations, z-scores, and real-world data analysis.