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ADMS 2320 Assignment #1 Solutions
Published : 31-10-2014 - Duration : 14:07 - View : 1
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Case 4 Medical Results (10 Marks)
False positives (and negatives) are particularly an issue when it comes to medical testing and disease diagnoses. Laura’s doctor is concerned about her health and schedules her for some tests. She knows that the disease is fairly rare (only 1% of the population) ever contract it, but being a good doctor she wants to conduct a new test for the disease Laura may have.
If she has the disease, there is a 98% chance the test will be positive. If she doesn’t have the disease, there is 95% chance the test will be negative.
a) What percentage of the population will test positive?
b) If Laura tests positive for the disease, what is the probability she doesn’t actually have the disease?
c) If Laura tests negative for the disease, what is the probability she does actually have the di

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