Question: Only answer question 23 and show work DL Positive Test Result Negative Test Result (Test shows drug use.) (Test shows no drug use.) Subject Uses

Only answer question 23 and show work

DL Positive Test Result Negative Test Result (Test shows drug use.) (Test shows no drug use.) Subject Uses Drugs 45 5 (True Positive) (False Negative) Subject Does Not Use Drugs 25 480 (False Positive) (True Negative) 21. Drug Testing Job Applicants Find the probability of selecting someone who got a result that is a false negative. Who would suffer from a false negative result? Why? 22. Drug Testing Job Applicants Find the probability of selecting someone who got a result that is a false positive. Who would suffer from a false positive result? Why? 23. Drug Testing Job Applicants Find the probability of selecting someone who uses drugs. Does the result appear to be reasonable as an estimate of the "prevalence rate" described in the Chapter

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1. Explain the following statements: a) Objective reality is always subjectively interpreted. b) What we know depends on whom we got to know it from.

4. Give examples from your everyday life where the process affects the result, but where the result also affects the process.

6. Give examples of circular patterns in a communication situation that you have participated in, where element A affects B, and B affects A.