At a sexually transmitted disease (STD) clinic in Miami, Florida, patients were screened for hepatitis C using Centers for Disease Control and Prevention (CDC) screening criteria in the form of a questionnaire (Weisbord et al., 2003). The study concluded that the probability of having Hepatitis C is Pr{disease} = 0.047, the probability that the test comes up positive for those that have Hepatitis C (sensitivity) is 0.61 and the probability it comes up negative for those that do not have Hepatitis C (specificity) is 0.91. What is the probability that the test comes up positive? (Do not round until the final answer. Round the final answer to 5 places after the decimal.) What is the probability of a false negative? (Do not round until the final answer. Round the final answer to 5 places after the decimal.) What is the probability of a false positive? (Do not round until your final answer. Round your final answer to 5 places after the decimal.) Given that the test comes up positive, find the probability of having Hepatitis C. (Do not round until the final answer. Round the final answer 5 places after the decimal.)
At a sexually transmitted disease (STD) clinic in Miami, Florida, patients were screened for hepatitis C using Centers for Disease Control and Prevention (CDC) screening criteria in the form of a questionnaire (Weisbord et al., 2003). The study concluded that the
What is the probability that the test comes up positive? (Do not round until the final answer. Round the final answer to 5 places after the decimal.)
What is the probability of a false negative? (Do not round until the final answer. Round the final answer to 5 places after the decimal.)
What is the probability of a false positive? (Do not round until your final answer. Round your final answer to 5 places after the decimal.)
Given that the test comes up positive, find the probability of having Hepatitis C. (Do not round until the final answer. Round the final answer 5 places after the decimal.)
Introduction:
The study involves a test for hepatitis C.
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