Consider marginal homogeneity for an I I table a Letting F() A, explain how (i) F() 0, where A has I 1 rows, and (ii) F() X, where A has 2(I 1) rows and has I 1 elements In part (ii), show A, , X, when I 3 b Explain how to use WLS to test marginal homogeneity This is Bhapkars test (10 16)

Question: Consider marginal homogeneity for an I I table. a. Letting F() = A, explain how (i) F() = 0, where A has I

Consider marginal homogeneity for an I × I table.

a. Letting F(π) = Aπ, explain how (i) F(π) = 0, where A has I – 1 rows, and (ii) F(π) = Xβ, where A has 2(I – 1) rows and β has I – 1 elements. In part (ii), show A, π, X, β when I = 3.

b. Explain how to use WLS to test marginal homogeneity. [This is Bhapkar’s test (10.16).]

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