The Mann-Whitney U Table is a statistical tool used to determine the significance of differences between two independent groups. It is based on the Mann-Whitney U test, which is a non-parametric test used to compare two groups when the data is not normally distributed. The table contains critical values for the U statistic, which is calculated from the ranks of the data. It is commonly used in research and data analysis to determine if there is a significant difference between two groups, and can be applied to a variety of data types and sample sizes. The Mann-Whitney U Table is a useful tool for researchers, as it allows for the comparison of non-parametric data without making assumptions about the underlying distribution.