An automobile manufacturer has given its car a 45.2 miles/gallon (MPG) rating. An independent testing firm has

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An automobile manufacturer has given its car a 45.2 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the actual MPG for this car since it is believed that the car has an incorrect manufacturer's MPG rating. After testing 150 cars, they found a mean MPG of 45.5. Assume the population standard deviation is known to be 1.3. A level of significance of 0.01 will be used. Make the decision to reject or fail to reject the null hypothesis. Answer Tables Keypad Keyboard Shortcuts Reject Null Hypothesis O Fail to Reject Null Hypothesis Submit

Posted Date: Jun 25, 2024 11:45 PM

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An automobile manufacturer has given its car a 45.2 miles/gallon (MPG) rating. An independent testing firm has

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