Mann-Whitney U Test Explained
Mann-Whitney U Test The Mann-Whitney U test, also known as the Wilcoxon rank-sum test, is a non-parametric statistical test used to compare two independent groups. It helps assess whether the …
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Chi-Square Test Explained
What is Chi-Square test? The chi-square test (χ²) is a non-parametric statistical test used to analyze categorical data. It helps determine whether the observed frequencies of a variable (e.g., the …
ANOVA Analysis of Variance Explained
What is ANOVA Analysis of Variance? ANOVA Analysis of Variance is a statistical technique used to compare the means of two or more groups to determine if there is a …
T-Test Explained
T-Test: Overview and Requirements Requirements to Perform a T-Test Essential Requirements: Additional Considerations: Key Differences from Z-Test Requirements: Steps to Perform a T-Test: Example Calculation: Independent Samples T-Test Scenario: We …
Z-Test Explained
Z-Test: Overview and Requirements Requirements for Z-Test: Steps for Conducting a Z-Test Example Calculation: One-Sample Z-Test Scenario: A teacher believes the average score on a history exam is 75 points. …