Aldrich Ames is a convicted traitor who leaked American secrets to a foreign power Yet Ames took routine lie detector tests and

Question

Aldrich Ames is a convicted traitor who leaked American secrets to a foreign power Yet Ames took routine lie detector tests and each time passed them How can this be done Recognizing control questions employing unusual breathing patterns biting one s tongue at the right time pressing one s toes hard to the floor and counting backwards by 7 are countermeasures that are difficult t detect but can change the results of a polygraph examinationt In fact it is reported in Professor Ford s book that after only 20 minutes of instruction by Buzz Fay a prison inmate 85 of those trained were able to pass the polygraph examination even when guilty of a crime Suppose that a random sample of five students in a psychology laboratory are told a secret and then given instructions on how to pass the polygraph examination without revealing their knowledge of the secret What are the following probabilities Round your answers to three decimal places USE SALT a All the students are able to pass the polygraph examination b More than half the students are able to pass the polygraph examination c No more than half of the students are able to pass the polygraph examination d All the students fail the polygraph examination

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