Mathematics, 27.11.2019 03:31, casaescuelarios
Atrucking firm suspects that the mean lifetime of a certain tire it uses is more than 30,000 miles. to check the claim, the firm randomly selects and tests 54 of these tires and gets a mean lifetime of 29,400 miles with a population standard deviation of 1200 miles. at ΅ = 0.05, test the trucking firm's claim. justify your decision with work. write a short parargraph about the results of the test and what you can conclude about the claim
Answers: 1
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Atrucking firm suspects that the mean lifetime of a certain tire it uses is more than 30,000 miles....
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