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What is a chi-squared test used to measure?

1 Answer

Feb 26, 2017

The $χ^{2}$ $chi ^2$ test is used to investigate whether distributions of categorical variables differ from one another.

Explanation:

The $χ^{2}$ $chi ^2$ test can only be used on actual numbers, not on percentages, proportions or means.

The $χ^{2}$ $chi ^2$ statistic compares the tallies or counts of categorical responses between two or more independent groups.

In summary:
The $χ^{2}$ $chi ^2$ test is used to investigate whether distributions of categorical variables differ from one another.

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