Hotelling's T-squared

Hotelling's T-squared is a statistical method used to compare two groups when looking at multiple variables simultaneously. It assesses whether the average profile of one group differs significantly from another, considering the relationships among the variables. Think of it as a more advanced way to check if two groups are different overall, rather than just looking at one factor at a time. It's often used in quality control, research, and data analysis to determine if two populations are statistically distinct based on multiple measurements.