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education/statistics/Hypothesis Tests.md
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@@ -72,6 +72,8 @@ This test is used when you have one qualitative variable with many categories, e
The $\chi^2$ curve does not follow the normal curve. It has a long right hand tail. As the degrees of freedom go up, the curves flatten out, and the hump moves out to the right. The $\chi^2$ curve does not follow the normal curve. It has a long right hand tail. As the degrees of freedom go up, the curves flatten out, and the hump moves out to the right.
$$ df = num_{terms} - 1 $$
There will never be a $\chi^2$ statistic. There will never be a $\chi^2$ statistic.
Ch ($\chi$), i is pronounced khai Ch ($\chi$), i is pronounced khai