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Solution: In Exercises, refer to Table, included with the Chapter Problem. In each case
Chapter 4, Problem 23BSC(choose chapter or problem)
Problem 23BSC
In Exercises, refer to Table, included with the Chapter Problem. In each case, assume that 1 of the 1000 test subjects is randomly selected.
Positive Predictive Value Find the positive predictive value for the test. That is, find the probability that a subject uses drugs, given that the test yields a positive result.
Table Pre-Employment Drug Screening Results
|
Positive Test Result (Drug Use Is Indicated) |
Negative Test Result (Drug Use Is Not Indicated) |
Subject Uses Drugs |
44 (True Positive) |
6 (False Negative) |
Subject Is Not a Drug User |
90 (False Positive) |
860 (True Negative) |
Questions & Answers
QUESTION:
Problem 23BSC
In Exercises, refer to Table, included with the Chapter Problem. In each case, assume that 1 of the 1000 test subjects is randomly selected.
Positive Predictive Value Find the positive predictive value for the test. That is, find the probability that a subject uses drugs, given that the test yields a positive result.
Table Pre-Employment Drug Screening Results
|
Positive Test Result (Drug Use Is Indicated) |
Negative Test Result (Drug Use Is Not Indicated) |
Subject Uses Drugs |
44 (True Positive) |
6 (False Negative) |
Subject Is Not a Drug User |
90 (False Positive) |
860 (True Negative) |
ANSWER: