6 Name and define the two types of chisquare testsSolutionhe

6. Name and define the two types of chi-square tests.

Solution

here are two types of chi-square test.

1. Chi-square test for Goodness of Fit

Goodness of fit means how well a statistical model fits a set of observations. A measure of goodness of fit typically summarize the discrepancy between observed values and the values expected under the model in question. Such measures can be used in statistical hypothesis testing, e.g., to test for normality of residuals, to test whether two samples are drawn from identical distributions.

2. Chi-square test for Independence

The chi-square test for independence is used to determine the relationship between two variables of a sample. In this context independence means that the two factors are not related. Typically in social science research, we\'re interested in finding factors which are related, e.g. education and income, occupation and prestige, age and voting behaviour.