A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data? a. Determine the test statistic. chi squared equals (Round to three decimal places as needed.) b. Determine the P-value of the test statistic. P-value equals (Round to four decimal places as needed.)
A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data? a. Determine the test statistic. chi squared equals (Round to three decimal places as needed.) b. Determine the P-value of the test statistic. P-value equals (Round to four decimal places as needed.)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter7: Percents
Section: Chapter Questions
Problem 13CT
Related questions
Question
A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data?
a. Determine the test statistic.
chi squared equals
(Round to three decimal places as needed.)
b. Determine the P-value of the test statistic.
P-value equals
(Round to four decimal places as needed.)
Transcribed Image Text:Number of Cigarettes Smoked per Day
35 and over
1-14
15-34
Wear Seat Belts
158
16
43
Don't Wear Seat Belts
148
13
35
15
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