Question: 7.8 Refer to the previous two exercises. PROC GENMOD in SAS reports the maximized log likelihood as 3475.19 for the model of mutual independence (df

7.8 Refer to the previous two exercises. PROC GENMOD in SAS reports the maximized log likelihood as 3475.19 for the model of mutual independence

(df = 11), 3538.05 for the model of homogeneous association (df = 5), and 3539.58 for the model containing all the three-factor interaction terms.

a. Write the loglinear model for each case, and show that the numbers of parameters are 5, 11, and 15.

b. According to AIC (see Section 5.1.5), which of these models seems best?

Why?

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