Chi square fitness= Its a test applied to a single categorical variable from two different populations. is used to determine whether frequency counts are distributed identically across different populations.
-The sampling method should be random sampling
Homogenity Test-can be used to make a conclusion about whether two populations have the same distribution.
-The population sample must be the same
-All values in the table must be greater than or equal to 5.
- The two populations follow the same distribution.
- The two populations have different distributions.
IIndependent Test: Use the Test for Independence when you want to decide whether two variables are independent or dependent. In this case there will be two qualitative survey questions or experiments and a contingency table will be constructed. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses are:
- The two variables are independent.
- The two variables are dependent.
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