Skewness & Kurtosis
Skewness We always check for Skewness and Kurtosis while doing Exploratory Data Analysis, they both measure and give information about the shape of the data, but they capture different aspects …
Statistics
What are the types of hypothesis testing?
Hypothesis Testing There are several main types of hypothesis testing, each suited to analyzing different kinds of data and research questions. Here’s a breakdown of some common types: Parametric Tests: …
Wilcoxon Signed-Rank Test Explained
Wilcoxon Signed-Rank Test : Overview and Requirements The Wilcoxon signed-rank test, also known as the Wilcoxon matched-pairs signed-rank test, is a non-parametric statistical test used to compare two paired samples. …
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 …
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 …