Statistics MCQs, Data Analysis, Stat Software
The Chi-Square distribution and association of attributes, Assumptions of the chi-square distribution, confidence intervals, variable and attributes, classification, Contingency and tests of independence
Contingency Tables also called cross tables or two-way frequency tables describe the relationship between several categorical (qualitative) variables. A bivariate relationship is defined by the joint distribution of the two associated random variables. Contingency Tables Let $X$ and $Y$ be two categorical response variables. Let variable $X$ have $I$ levels …
The post is about the Chi Square Goodness of Fit Test. Application of $\chi^2$distribution is the test of goodness of fit. It is possible to test the hypothesis that a population has a specified theoretical distribution using the $\chi^2$ distribution. The theoretical distribution may be Normal, Binomial, Poisson, or any …
The Contingency Table (also called two-way frequency tables/ crosstabs or cross-tabulations) is used to find the relationship (association or dependencies (a measure of association)) between two or more variables measured on the nominal or ordinal measurement scale. Contingency Table: A Measure of Association A contingency table contains $R$ rows and …