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Make the decision to reject or fail to reject the null

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An automobile manufacturer has given its jeep a 42.9 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the actual MPG for this jeep since it is believed that the jeep has an incorrect manufacturer's MPG rating. After testing 300 jeeps, they found a mean MPG of 42.8. Assume the population variance is known to be 5.76. A level of significance of 0.01 will be used. Make the decision to reject or fail to reject the null hypothesis.

Reference no: EM132409481

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