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Number of Cigarettes Smoked per Day

0 1-14 15-34 35 and over
Wear Seat Belts 159 29 46 10
Don't wear seat belts 159 17 35 9

A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the accompanying table. Use a

Test statistic?

P value?

Reject/fail to reject?

math   Statistics-And-Probability   
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Answer #1

1-1415 -3435 over Total 0 159 159 318 244 220 464 46 35 81 Wear seat belt Not wear Total 29 17 46 10 9 19 1-14 24.1897 21.810Observed Expected (E 167.2241379 24.18965517 42.59482759 9.99137931 50.7758621 21.81034483 38.40517241 9.00862069 O-E)2 /E 0.Observed Expected (E 167.2241379 24.18965517 42.59482759 9.99137931 50.7758621 21.81034483 38.40517241 9.00862069 O-E)2 /E 0.4 3 0.05 Columns-c Df-(r-1)c-1) 0 = 7.815 Critical value= 2,df Test statistic = Σ p-value Sincep-value0.05 hence fail to reje

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