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(Solved): An automobile manufacturer claims that their car has a 59.4 miles/gallon (MPG) rating. An independ ...



An automobile manufacturer claims that their car has a \( 59.4 \) miles/gallon (MPG) rating. An independent testing firm has

An automobile manufacturer claims that their car has a miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this car. After testing 751 cars they found a mean MPG of with a standard deviation of 2 MPG. Is there sufficient evidence at the level that the cars have an incorrect manufacturer's MPG rating? State the null and alternative hypotheses for the above scenario. Answer


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An automobile manufacturer claims that their car has a 59.4 mil
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