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Get Full Access to Elementary Statistics - 12 Edition - Chapter 4.5 - Problem 22bsc
Get Full Access to Elementary Statistics - 12 Edition - Chapter 4.5 - Problem 22bsc

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# Answer: In Exercises, refer to Table, included with the Chapter Problem. In each case

ISBN: 9780321836960 18

## Solution for problem 22BSC Chapter 4.5

Elementary Statistics | 12th Edition

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Problem 22BSC

Problem 22BSC

In Exercises, refer to Table, included with the Chapter Problem. In each case, assume that 1 of the 1000 test subjects is randomly selected.

Inverse Probabilities

a. Find P (negative test result | subject does not use drugs).

b. Find P (subject does not use drugs | negative test result).

c. Compare the results from parts (a) and (b). Are they equal?

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)

Step-by-Step Solution:
Step 1 of 3

Solution  22BSC

= 0.993

Step 2 of 3

Step 3 of 3

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