Mann–Whitney U Calculator

About This Tool

The Mann–Whitney U Calculator is a dedicated online tool that enables users to perform the Mann–Whitney U test, a popular non-parametric statistical method for comparing two independent data samples. Whether you're conducting research, analyzing clinical data, or performing academic exercises, this calculator simplifies the process by automating the calculations of U-values, p-values, and critical thresholds.

Using the tool is straightforward: input your raw data for each group, select your desired significance level, and click 'Calculate.' Results will display immediately, providing the U statistic, the associated p-value, and an interpretation that indicates whether the observed difference is statistically significant. For small samples, the calculator can compute exact p-values, ensuring precision, while for larger datasets, it offers approximate calculations for quicker results.

Key features include data validation to prevent errors, optional visualization of data distributions, and export options for results. This tool is essential for researchers in psychology, medicine, social sciences, and education who require a reliable, instant means of statistical comparison without deep statistical software knowledge.

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