Mathematics, 05.05.2020 17:39 isaiahrodriguezsm17
An automobile manufacturer has given its van a 54.5 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the actual MPG for this van since it is believed that the van has an incorrect manufacturer's MPG rating. After testing 220 vans, they found a mean MPG of 54.2. Assume the population variance is known to be 4.84. A level of significance of 0.01 will be used. Find the value of the test statistic. Round your answer to two decimal places.
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An automobile manufacturer has given its van a 54.5 miles/gallon (MPG) rating. An independent testin...
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