Mathematics, 02.10.2019 00:00 hussain5889
An automobile manufacturer claims that its van has a 44.2 miles/gallon (mpg) rating. an independent testing firm has been contracted to test the mpg for this van since it is believed that the van has an incorrect manufacturer's mpg rating. after testing 150 vans, they found a mean mpg of 44.4. assume the standard deviation is known to be 1.5. a level of significance of 0.02 will be used. find the value of the test statistic. round your answer to 2 decimal places.
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An automobile manufacturer claims that its van has a 44.2 miles/gallon (mpg) rating. an independent...
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