You intend to conduct a test of homogeneity for a contingency table with 5 categ

Question

You intend to conduct a test of homogeneity for a contingency table with 5 categories in the column variable and 5 categories in the row variable. You collect data from 472 subjects.

What are the degrees of freedom for the 2 distribution for this test?
d.f. =

Questions:

What are the requirements to perform a goodness-of-fit test? [1 sentence or 2 bullets]

Why is the chi-square distribution always positive? [1 sentence]

How would the goodness-of-fit procedure be modified to check that data follows a continuous distribution? [2 sentences]

Explanation / Answer

d.f =(c-1)*(r-1) = (5-1)*(5-1)= 16

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