Thursday, March 12, 2009

Intro to Tests of Homogeneity

Suppose we wanted to know if the proportions between two populations where similar.

For example:

Are the age ranges between people who rent and people who own homes the same?
Is the income between republican and democratic voters the same?

To answer these questions we have to use tests of homogeneity.
To do this, we take random samples from both groups and record their proportions into categorical variables.

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