Statistical Modeling of Fuel Consumption of Selected Automobile Makes
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Abstract
Six automobile makes (Mercedes Benz, GM, BMW, Hyundai, Kia and Toyota) were compared for fuel efficiency. A total of 352 automobiles were involved in the study. Fitted model is analysis of covariance model with distance covered per gallon of gasoline as the response variable and engine capacity as the quantitative independent variable. Qualitative factors in the model are automobile make, drive description, air aspiration method and transmission mode. Toyota was found to be most fuel efficient, followed by Mercedes Benz, then Hyundai, GM, BMW and lastly, Kia. A comparison of drive description types revealed that 2-wheel (front) automobiles performed best, followed by 2-wheel (rear), All-wheel and lastly, 4-wheel. Turbo charged automobiles were found to be most fuel efficient, followed by naturally aspirated ones and lastly, supercharged. Automobiles equipped with manual transmission were more fuel efficient that those equipped with automatic transmission. Future research could include more vehicles and more recent models.
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