A trucking firm suspects that the mean life of a certain tire it uses is less than 35,000 miles.Â To check the claim, the firm randomly selects and tests 18 of these tires and gets a mean lifetime of 34,350 miles with standard deviation of 1200 miles.Â At Î± = 0.05, test the trucking firmâ€™s claim.Â
A trucking firm suspects that the mean life of a certain tire it uses is less than 35,000
by Manilla | Aug 3, 2022 | Uncategorized | 0 comments
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