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2) A trucking firm suspects that the mean lifetime of a certain tire it uses is less than 30,000 miles. To check the cla
Posted: Thu Feb 17, 2022 10:59 am
by answerhappygod
- 2 A Trucking Firm Suspects That The Mean Lifetime Of A Certain Tire It Uses Is Less Than 30 000 Miles To Check The Cla 1 (19.52 KiB) Viewed 62 times
2) A trucking firm suspects that the mean lifetime of a certain tire it uses is less 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 a = 0.05, test the trucking firm's claim. (USE P-VALUE METHOD)