Nov 11, 2025 · Learn about the Chi-Square test, its formula, and types. Understand when to use the tests, chi-square distributions, and how to solve Chi-Square problems.

May 23, 2022 · A Pearson’s chi-square test is a statistical test for categorical data. It is used to determine whether your data are significantly different from what you expected.

Aug 25, 2021 · This tutorial provides several examples of how Chi-Square tests are used in real life.

May 3, 2025 · Learn how to use the chi-square test for categorical data analysis—goodness-of-fit, test of independence, assumptions, and step-by-step exp.

Aug 2, 2025 · Chi-squared test, or χ² test, helps in determining whether these two variables are associated with each other. This test is widely used in market research, healthcare, social sciences, …

In business, A/B testing uses chi-square to compare two marketing strategies. Example: Using the chi-square test, businesses can analyze if the difference in performance between Strategy A and B is …

Aug 29, 2023 · There are three main types of Chi-square tests, tests of goodness of fit, the test of independence, and the test for homogeneity. All three tests rely on the same formula to compute a …

Welcome to this comprehensive guide on Chi‑Square (χ²) tests, essential tools in statistics for analyzing categorical data.

Chi-squared test Chi-squared distribution, showing χ2 on the first axis and p -value (right tail probability) on the second axis. A chi-squared test (also chi-square or χ2 test) is a statistical hypothesis test used …

May 15, 2025 · Use Chi-Squared tests when comparing frequencies between categories.