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It is very common to mix up the concept of association and interaction. Some people also assume that it is imperative for two variables to be associated before they interact. But that is not the truth. When we talk in the context of statistics, these terms have different implications f to signify the relationship between … Continue reading “The difference between Interaction and Association: Variables as Predictors in a Regression ANOVA Model”

Statistics, a scientific approach to analyzing numerical data, is employed to discover relationships among the phenomena to describe, predict and control their occurrence. Statistics helps the researcher to acquire precise, steadfast and dependable findings. Although there are several statistical tests such as ANOVA, independent t-test, etc. to arrive at the right result, one must choose … Continue reading “Wilcoxon Rank-Sum test : A Non Parametric Alternative to two Sample T-Test”