Mathematics, 20.05.2021 03:10 tyneshiajones124

4) A tire manufacturer advertises that their tires last 40,000 miles. A customer questions the claim as being overstated, and does a survey of 100 tires and finds the mean life to be 36,000 with a standard deviation of 3,500 miles. Test the hypotheses at a .10 level.

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4) A tire manufacturer advertises that their tires last 40,000 miles. A customer questions the claim...

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