Suppose a certain HIV test has both a sensitivity and specificity of 99.9%. This test is applied to a population of 1,000,000 people. Suppose the population comes from the blood donor pool that has already been screened. In this population, 0.1% of the population is actually infected with HIV. Used drugs Did not use drugs Total Tested Positive Tested Negative Total Complete the table above Calculate the PPV Calculate the NPV How many people will test positive who are, in fact, disease-free?

Suppose a certain HIV test has both a sensitivity and specificity of 99.9%. This test is applied to a population of 1,000,000 people. Suppose the population comes from the blood donor pool that has already been screened. In this population, 0.1% of the population is actually infected with HIV. Used drugs Did not use drugs Total Tested Positive Tested Negative Total Complete the table above Calculate the PPV Calculate the NPV How many people will test positive who are, in fact, disease-free?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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