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All cars manufactured in the U.S. must be tested for safety, and the testing destroys the vehicle. One kind of safety testing determines if the
All cars manufactured in the U.S. must be tested for safety, and the testing destroys the vehicle. One kind of safety testing determines if the vehicle's airbags deploy properly. A model receives the lowest safety rating if no more than 85% of the vehicles for that model have airbags that deploy properly. One particular model is tested. Using a significance level of 0.05, an analyst tests the claim that the airbags deploy properly in no more than 85% of cars for that model. Choose the correct direction of the test and the appropriate sampling distribution. O Left-tailed test; z-distribution. Right-tailed test; z-distribution. O Right-tailed test; t-distribution. Left-tailed test; t-distribution. O We do not have enough information. Two-tailed test; z-distribution. Two-tailed test; t-distribution
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