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A researcher says that there is a 72% chance a polygraph test will catch a person...

A researcher says that there is a 72% chance a polygraph test will catch a person who is, in fact, lying. Furthermore, there is approximately a 6% chance that the polygraph will falsely accuse someone of lying.

a) If the polygraph indicated that 32% of the questions were answered with lies, what would you estimate for the actual percentage of lies in the answer?

b) If the polygraph indicated that 68% of the questions were answered with lies, what would you estimate for the actual percentage of lies?

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Answer #1

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