In a study9 on the effects of AZT in slowing the development of AIDS symptoms, 338 veterans whose immune systems were beginning to falter after infection with the AIDS virus were randomly assigned either to receive AZT immediately or to wait until their T cells showed severe immune weakness. Output follows of modeling the 2 × 2 × 2 cross-classification of race, whether AZT was given immediately, and whether AIDS symptoms developed during the three-year study.What null hypothesis is tested by the difference between the null deviance and the residual deviance? Interpret. Explain how to set up indicator variables for azt and race to obtain the estimates shown. > AIDS # Data file at text websiterace azt yes no # yes and no are categories of AIDS symptoms response1 white yes14 932 whiteno32 813 black yes11 524 blackno12 43> fit <- glm (yes/ (yes+no)azt + race, weights=yes+no, family=binomial,>data=AIDS)> summary(fit)Estimate Std. Errorz value Pr(>|z|)(Intercept)-1.073570.26294-4.0834.45e-05aztyes-0.719460.27898-2.5790.00991racewhite0.055480.288610.1920.84755Null deviance: 8.3499on 3 degrees of freedomResidual deviance: 1.3835on 1degrees of freedom

Given dataIn a study on the effects of AZT in slowing the developement of AIDS symptoms338 veterans…

Answered: In a study9 on the effects of AZT in…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 6SGR

See similar textbooks

Related questions

Question

In a study9 on the effects of AZT in slowing the development of AIDS symptoms, 338 veterans whose immune systems were beginning to falter after infection with the AIDS virus were randomly assigned either to receive AZT immediately or to wait until their T cells showed severe immune weakness. Output follows of modeling the 2 × 2 × 2 cross-classification of race, whether AZT was given immediately, and whether AIDS symptoms developed during the three-year study.

What null hypothesis is tested by the difference between the null deviance and the residual deviance? Interpret. Explain how to set up indicator variables for azt and race to obtain the estimates shown.