A study is conducted in patients with HIV. The primary outcome is CD4 cell count, which is a measure of the stage of the disease. Lower CD4 counts are associated with more advanced disease. The investigators are interested in the association between vitamin and mineral supplements and CD4 count. A multiple regression analysis is performed relating CD4 count to the use of supplements (coded as 1 = yes and 0 = no) and to the duration of HIV in years (i.e., the number of years between the diagnosis of HIV and the study date). For the analysis, y = CD4 count: = 501.41 + 12.67 Supplements − 30.23 Duration of HIV. What is the expected CD4 count for a patient taking supplements who has had HIV for 2.5 years? What is the expected CD4 count for a patient not taking supplements who was diagnosed with HIV at study enrollment? What is the expected CD4 count for a patient not taking supplements who has had HIV for 2.5 years?

A study is conducted in patients with HIV. The primary outcome is CD4 cell count, which is a measure of the stage of the disease. Lower CD4 counts are associated with more advanced disease. The investigators are interested in the association between vitamin and mineral supplements and CD4 count. A multiple regression analysis is performed relating CD4 count to the use of supplements (coded as 1 = yes and 0 = no) and to the duration of HIV in years (i.e., the number of years between the diagnosis of HIV and the study date). For the analysis, y = CD4 count: = 501.41 + 12.67 Supplements − 30.23 Duration of HIV. What is the expected CD4 count for a patient taking supplements who has had HIV for 2.5 years? What is the expected CD4 count for a patient not taking supplements who was diagnosed with HIV at study enrollment? What is the expected CD4 count for a patient not taking supplements who has had HIV for 2.5 years?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.6: Regression And Median-fit Lines

Problem 4GP

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