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A genetic condition is found that affects 10% of adults in the U.S. population

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Question;A;genetic condition is found that affects 10% of adults in the U.S. population.;In a city with 100,000, that means that approximately 10,000 people have the;condition, and 90,000 people do not. Fortunately, there is a genetic test for;the gene that causes the disease. The test has an error rate of 1% (that is, 1%;of people tested get the wrong result). This means that if we test all 100,000;people, of the 10,000 people who have the condition, 1% of them will have false;negatives. In other words, this test will not detect the condition in 1% of the;people who actually do have the condition.;If false positives also occur at the rate of 1%, then about 1% of the 90,000;people who do not have the bad gene will test positive.;What an individual really wants to know, and the questions you need to answer;are;1. In this city, how many people receive a positive test result? How many;people who test positive actually do not have the condition? What percent of;people who get a positive test result don?t have the condition? This is the;false-positive rate.;2. In this city, how many people receive a negative test result? How many;people who test negative actually have the condition? What percent of people;who get a negative test result have the condition? This is the false-negative;rate.

 

Paper#60859 | Written in 18-Jul-2015

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