Question #44954
A trucking firm is suspicious of the claim that the average lifetime of certain tires is at least 28000 miles. To check the claim , the firm puts 40 of these tires on its trucks , and gets a mean lifetime of 27463 miles with a standard deviation of 1348 miles . What can it conclude if the probability of a type I error is to be atleast 0.01 ?
1
Expert's answer
2014-08-20T13:13:11-0400
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