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education/statistics/Hypothesis Tests.md
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@ -74,6 +74,10 @@ The $\chi^2$ curve does not follow the normal curve. It has a long right hand ta
$$ df = num_{terms} - 1 $$ $$ df = num_{terms} - 1 $$
There will never be a $\chi^2$ statistic. %% There will never be a $\chi^2$ statistic. (i don't know what this means but it was in my notes) %%
Ch ($\chi$), i is pronounced khai Ch ($\chi$), i is pronounced khai
Difference between $\chi ^2$ and z-test
- The $\chi ^2$-test says whether the data are like the result of drawing at random from a box whose *contents* are given.
- The z-test says whether the data are like the result of drawing at random from a box whose *average* is given.