Blood Screening, Women’s Role in Society, and Colonic Polyps. Logistic Regression and Generalized Linear Models:. Blood Screening. ESR measurements (erythrocyte sedimentation rate) Study checks for the rate of increase of ESR when (blood proteins) fibrinogen and globulin increase
Women’s Role in Society,
and Colonic PolypsLogistic Regression and Generalized Linear Models:
Compares the two models one of just fibrinogen, the other of both fibrinogen and globulin
Why Chisquared test?
ANOVA assumes normal distribution for each data set. Why is this OK?
Analysis of Deviance Table
Model 1: ESR ~ fibrinogen
Model 2: ESR ~ fibrinogen + globulin
Resid. Df Resid. Dev Df Deviance P(>|Chi|)
1 30 24.8404
2 29 22.9711 1 1.8692 0.1716
Comparing the residual deviance between the two models, we see that the difference is not significant. We must surmise that there is no association between globulin and ESR level.R Commands