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?
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?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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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?
Transcribed Image Text: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?
E Click the icon to view the table.
Determine the null and alternative hypotheses.
O A. Ho: Polygraph testing is accurate.
More Info
H1: Polygraph testing is not accurate.
O B. Ho: Whether a subject lies is independent of the polygraph test indication.
H,: Whether a subject lies is not independent of the polygraph test indication.
Did the Subject Actually Lie?
No (Did Not Lie)
Yes (Lied) O
OC. Ho: Polygraph testing is not accurate.
H1: Polygraph testing is accurate.
Polygraph test indicated that
the subject lied.
Polygraph test indicated that
the subject did not lie.
20
44
O D. Ho: Whether a subject lies is not independent of the polygraph test indication.
21
9
H1: Whether a subject lies is independent of the polygraph test indication.
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