Reason to accept or reject the manufacturer-s claim

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Reference no: EM13136324

Bastien, Inc. has been manufacturing small automobiles that have averaged 55 miles per gallon of gasoline in highway driving. The company has developed a more efficient engine for its small cars and now advertises that its new small cars average more than 55 miles per gallon in highway driving. An independent testing service road-tested 45 of the automobiles. The sample showed an average of 56.2 miles per gallon with a standard deviation of 5 miles per gallon. With a 0.05 level of significance, do you accept or reject the manufacturer's claim.

Reference no: EM13136324

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