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Monthly Archives: May, 2023

Descriptive Statistical Analysis of Non-Parametric Variables (Nominal and Ordinal Scales)

Based on its methods, statistics can be divided into descriptive statistics and inferential statistics. Researchers can choose to use either of these methods or...

Wilcoxon Test | Different test of two paired samples for non-parametric variables

Differences test is one of the most commonly used associative tests by researchers. Differences test can be conducted on both parametric and non-parametric variables....

Mann-Whitney Test | Different test of two independent samples for non-parametric variables

In statistics, the association tests commonly conducted by researchers consist of tests of influence, relationship, and difference. Researchers often use the t-test to examine...

How to Test Normality of Residuals in Linear Regression and Interpretation in R (Part 4)

The normality test of residuals is one of the assumptions required in the multiple linear regression analysis using the ordinary least square (OLS) method....

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