In a study of the effectiveness of airbags in cars, 11,541 occupants were observed in car crashes with airbags available, and 41 of them were fatalities. Among 9853 occupants in crashes with airbags not available, 52 were fatalities. Use a 0.05 significance level to test the claim that the fatality rate of occupants is lower for those in cars equipped with airbags.
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