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An automobile manufacturer claims that its van has a 38.4 miles/gallon (MPG) rating. An independent testing...

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Basic Math

An automobile manufacturer claims that its van has a 38.4miles/gallon (MPG) rating. An independent testing firm has beencontracted to test the MPG for this van since it is believed thatthe van has an incorrect manufacturer's MPG rating. After testing240 vans, they found a mean MPG of 38.1. Assume the standarddeviation is known to be 2.0. A level of significance of 0.05 willbe used. Find the value of the test statistic. Round your answer to2 decimal places.

Enter the value of the test statistic.

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