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The table below includes results from polygraph​ (lie detector) experiments conducted by researchers. In each​ case, it

Posted: Wed May 11, 2022 3:42 pm
by answerhappygod
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?
No (did not lie)
Yes(lied)
Polygraph test indicated that the subject lied.
14

21
polygraph test indicated that the subject did not lie.
26.

9
Determine the test statistic.
χ2=_____(Round to three decimal places as​ needed.)
Determine the P -value of the test statistic
P-value= _____(Round to four decimal places as needed.)
Do the results suggest that polygraphs are effective in
distinguishing between truth and lies?