Polygraph tests (lie-detector tests) are often routinely administered to employees or prospective employees in sensitive positions. A polygraph test will label subjects + (positive) if it determines the subject is lying and - (negative) if it determines the subject is not lying. Subjects can either be lying or not lying (truthful). According to studies of polygraph reliability, the probability that the polygraph will test + (positive) given/conditional that the subject is actually lying is 0.88. The probability that the polygraph will test - (negative) given the subject is telling the truth (not lying) is 0.84. Assume that 90% chance a subject is telling the truth (10% chance of lying).

Polygraph tests (lie-detector tests) are often routinely administered to employees or prospective employees in sensitive positions. A polygraph test will label subjects + (positive) if it determines the subject is lying and - (negative) if it determines the subject is not lying. Subjects can either be lying or not lying (truthful). According to studies of polygraph reliability, the probability that the polygraph will test + (positive) given/conditional that the subject is actually lying is 0.88. The probability that the polygraph will test - (negative) given the subject is telling the truth (not lying) is 0.84. Assume that 90% chance a subject is telling the truth (10% chance of lying).

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section9.3: Binomial Probability

Problem 33E: Sick leave probability that a given worker at Dyno Nutrition Will call in sick on a Monday is 004....

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