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An automobile manufacturer claims that its car has a26.2 26.2miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this

An automobile manufacturer claims that its car has a26.2

26.2miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this car since it is believed that the car has an incorrect manufacturer's MPG rating. After testing190

190cars, they found a mean MPG of26.5

26.5. Assume the variance is known to be4.00

4.00. A level of significance of0.1

0.1will be used. Find the value of the test statistic. Round your answer to 2 decimal places.

Enter the value of the test statistic.

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