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Accuracy of Polygraph Tests The data in the accompanying table summarize results from tests of the accuracy of polygraphs (based on data from the Office of Technol- ogy Assessment). Use a 0.05 significance level to test the claim that whether the subject lies is independent of the polygraph indication. What do the results suggest about the effectiveness of polygraphs?

Polygraph Indicated

Truth

Polygraph Indicated

Lie

Subject actually told the truth

Subject actually told a lie

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