MATLAB: An Introduction with Applications
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ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case, it was known if the subjected lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and lies?
Determine the null and alternative hypotheses.
Determine the test statistic.
Determine the P-value of the test statistic.
Do the results suggest that polygraphs are effective in distinguishing between truth and lies?
Transcribed Image Text:о Могe Info
Did the Subject Actually Lie?
Yes (Lied)
No (Did Not Lie)
Polygraph test indicated that
19
39
the subject lied.
Polygraph test indicated that
the subject did not lie.
24
12
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- The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case, it was known if the subjected lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and lies? Click the icon to view the table. Determine the null and alternative hypotheses. More Info O A. Ho: Whether a subject lies is not independent of t H1: Whether a subject lies is independent of the p B. Ho: Polygraph testing is not accurate. H4: Polygraph testing is accurate. Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) C. Ho: Whether a subject lies is independent of the p H,: Whether a subject lies is not independent of t Polygraph test indicated that the subject lied. Polygraph test indicated that the subject did not lie. 19 44 8. 12…arrow_forwardPlease Answer the question in the screenshot providedarrow_forwardThe table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case, it was known if the subjected lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and lies? No(Did Not Lie) Yes (Lied) Polygraph test indicated that the subject lied. 20 38 Polygraph test indicated that the subject did not lie. 14 8 Determine the test statistic. (Round to three decimal places as needed.) Determine the P-value of the test statistic. (Round to four decimal places as needed.) Do the results suggest that polygraphs are effective in distinguishing between truth and lies? A. There is…arrow_forward
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