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? Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) Polygraph test indicated that the subject lied. 12 22 Polygraph test indicated that the subject did not lie. 25 10 Determine the test statistic. Determine the P Value. 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? Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) Polygraph test indicated that the subject lied. 12 22 Polygraph test indicated that the subject did not lie. 25 10 Determine the test statistic. Determine the P Value. 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?
|
Did the Subject Actually Lie?
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|
|||
|---|---|---|---|---|
|
|
No (Did Not Lie)
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Yes (Lied)
|
|
|
|
Polygraph test indicated that the subject lied.
|
12
|
|
22
|
|
|
Polygraph test indicated that the subject did not lie.
|
25
|
|
10
|
Determine the test statistic.
Determine the P Value.
Do the results suggest that polygraphs are effective in distinguishing between truth and lies?
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