A particular brand of tires claims that its high-performance tire averages at least 50,000 miles before it needs to be replaced. A sample of replaced tires of this design is conducted. From the 28 tires sampled, the mean lifespan was 47,000 miles with a standard deviation of 9,800 miles. Using a 0.05 significance level, test the claim. tsample = -1.62

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