Statistical hypothesis testing using the Chi-squared test

The Chi-squared test is often used when you determine whether your data is statistically significant or not.
For example, if you plan to determine one factor(male/female) and another factor(democrats/republicans) are related, the Chi-squared test will be of your help.

Sample data for male/female / democrats/republicans

* This data is an arbitrary sample for statistical study, not real data.

The χ2 value:

χ2 valueEvaluation
χ2 < 3.84p ≥ 0.05
3.84 ≤ χ2 < 6.64p < 0.05
6.64 ≤ χ2p < 0.01


Tags:   math   statistics  

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