👉 A Schefferite, or Scheffé's Law, is a statistical significance test that assesses whether two variables are significantly different from each other. This test is named after American statistician George A. Scheffer. In simpler terms, it checks if there is any difference between the means of two groups (variables). For example, suppose you have two groups of people: group A with mean income of $50,000 and group B with mean income of $60,
