Question: Consider a cross-classification of W, X, Y, Z. a. Explain why (WXZ, WYZ) is the most general loglinear model for which X and Y are

Consider a cross-classification of W, X, Y, Z.

a. Explain why (WXZ, WYZ) is the most general loglinear model for which X and Y are conditionally independent.

b. State the model symbol for which X and Y are conditionally independent and there is no there-factor interaction.

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