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Chegg.com le Do Homework- mackenzie mcpherson-fair Secure | https/www.mathxl.com/Student/PlayerHomework.aspx?homeworkld 4424935498question... .Q Statistics Fall 2017, Thursdays Homework: Class 4 : Section 4.5 Homework Score: 0 of 1 pt 4.5.23 Save 80f 13 (12 complete) w score: 87.18%, 11 Question Help The table below displays results from experiments with polygraph instruments. Find the positive predictive value for the test. That is, find the probability that the subject lied, given that the test yields a positive result Did the subject Actually Lie? No (Did Not Lie) Yes (Lied) Positive test results 32 Negative test results The probability is (Round to three decimal places as needed)

Explanation / Answer

PoPositive predictive value = P(subject lied | positive result)

= P(subject lied and positive result) / P(positive result)

= 44 / (11+44)

= 0.800

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