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Get Full Access to Elementary Statistics - 12 Edition - Chapter 4.5 - Problem 20bsc
Get Full Access to Elementary Statistics - 12 Edition - Chapter 4.5 - Problem 20bsc

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

ISBN: 9780321836960 18

## Solution for problem 20BSC Chapter 4.5

Elementary Statistics | 12th Edition

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Problem 20BSC

Problem 20BSC

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

False Negative Find the probability of selecting a subject with a negative test result, given that the subject uses drugs. Who would suffer from this type of error?

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:
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Solution  20BSC

= 0.12

Step 2 of 3

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Statistics: Informed Decisions Using Data : Tests for Independence and the Homogeneity of Proportions
?The following table contains the number of successes and failures for three categories of a variable. Test whether the proportions are

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