Chapter 13 (Pages 407-416, 431-432 only)
Parametric techniques when we have scaled data (interval or ratio) such as r, z, t, F.
Non-parametric techniques when we have non-scaled data (ranked or categorical) such as Chi-square or phi coefficient.
Chi-square test of independence (conditional probability):
This is the test of two variables (groups) that shows they are independent of each other.
Chi-square test of goodness-of-fit:
Compare proportions.
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