When to use chi-square goodness of fit?
Understand the Problem
The question is asking for the circumstances or conditions under which the chi-square goodness of fit test should be applied. This statistical test is used to determine whether the observed frequency distribution of a categorical variable differs from an expected distribution.
Answer
When you have one categorical variable and you want to test a hypothesis about its distribution.
The chi-square goodness of fit test is used when you have one categorical variable and you want to test a hypothesis about its distribution.
Answer for screen readers
The chi-square goodness of fit test is used when you have one categorical variable and you want to test a hypothesis about its distribution.
More Information
It is different from the chi-square test of independence, which is used when you want to test the relationship between two categorical variables.
Tips
Common mistakes include using the chi-square test of independence instead of the goodness of fit test when you only have one categorical variable.
