Some Employers Use Lie Detector Tests to Screen Job Applicants

question 190

Multiple Choice

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) 0.741
• B) 0.14
• C) 0.259
• D) 0.349

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Definitions:

Script

A set of commands or instructions written to be executed by a program or scripting engine to automate tasks.

Memory Location

A specific address in memory storage where data is kept, identifiable within a system for the purpose of storing and retrieving information.

Scripts

Scripts are a sequence of instructions written in a scripting language executed by another program rather than the computer processor directly.

Efficiency

Refers to the effectiveness with which resources are used to achieve a goal, often with the implication of doing so in a way that minimizes waste or maximizes utility.