Question #48249
an automobile manufacturer claims that its van has a 26.3 miles/gallon rating. after testing 250 vans, they found a mean mpg of 26.7. assume a population variance of 6.76. a level of significance of 0.1 will be used. is there sufficient evidence at the 0.1 level that the vans have an incorrect manufacturers mpg rating.
1
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2014-10-29T13:10:31-0400
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