Refer to Table 6 11 The Pearson test of independence has X 2 (I) 6 88 For equally spaced scores, the CochranArmitage trend test has z 2 6 67 (P 0 01) Interpret, and explain why results differ so Analyze the data using a linear logit model Test independence using the Wald and likelihood ratio tests,...

Refer to Table 6.11. The Pearson test of independence has X 2 (I) = 6.88. For equally

Question:

Refer to Table 6.11. The Pearson test of independence has X²(I) = 6.88. For equally spaced scores, the Cochran€”Armitage trend test has z²= 6.67 (P = 0.01). Interpret, and explain why results differ so. Analyze the data using a linear logit model. Test independence using the Wald and likelihood-ratio tests, and compare results to the Cochran€”Armitage test. Check the fit of the model, and interpret.

Table 6.11:

Degree of Infiltration Proportion High Clinical Change High Low 11 53 42 27 Worse 0.08 Stationary Slight improvement Mod