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Mathematics, 16.04.2020 20:50 animaljamissofab

A particular state university system has seven campuses. On each campus, a random sample of students will be selected, and each student will be categorized with respect to political philosophy as liberal, moderate, or conservative. The null hypothesis of interest is that the proportion of students falling in these three categories is the same at all 7 campuses.

On how many degrees of freedom will the resulting test X^2 be based?

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