Get Assign Guide Toots infected The Department of Heal of a certain state esti a

Question

Get Assign Guide Toots infected The Department of Heal of a certain state esti ates a 10% rate of H? for the 'at risk population and a 0 3% rate for the general population Tests for HIV are 95% accurate h detecing both true negatives and true postives. Random selection of 5000 at risk people and 20,000 people from the general populaton resuts in the following table Use the table below to complete parts (a) through (e). At Risk Population Test Positive Test Negative Test Positive Test Nepative Not Infected 229 4271 978 18,962 d Consider a patient in the general population. Of those wilth Hi, what percentage test pouitive? Of those who test positive, what percentage have HV? Explain why these two percentages are áfterent 5 of a Study eral podation with HV?%test posh e Ofthe patie ts in thegeneral population who test posiive L % ave HV or the patients ithe g (Type an integer or decinal rounded to the nearest tenth as needed)

Explanation / Answer

Here General Population = (50 + 10 + 978 + 18962) = 20,000

Tested Positive = (50 + 978)/20000 = 0.0514 = 5.14%

Of the patients in the geenral population who test positive, percentage have HIV = 50/(50 + 978) = 0.0486 = 4.86%

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