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Name: The table below includes results from polygraph (lie detector) experi
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Description: 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 significan

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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?

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
Print
Done
П

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