Author Question: Some employers use lie detector tests to screen job applicants. Lie detector tests are not ... (Read 140 times)

CharlieWard · **on:** Jul 25, 2018

Some employers use lie detector tests to screen job applicants. Lie detector tests are not completely
reliable. Suppose that in a lie detector test, 65 of lies are identified as lies and that 14 of true
statements are also identified as lies.

A company gives its job applicants a polygraph test, asking Did you tell the truth on your job
application?. Suppose that 93 of the job applicants tell the truth during the polygraph test.
What is the probability that a person who fails the test was actually telling the truth?
A) 0.259 B) 0.349 C) 0.14 D) 0.741

Question 2

22.6 16.1 36.1 36.0 23.8 20.3

A) 36.1 B) 4347.7 C) 3999.0 D) 8.35