DERIVATION AND DISCUSSION OF A REGRESSION MODEL FOR ESTIMATING THE FUEL ECONOMY OF AUTOMOBILES

This paper presents a discussion on the functional form (based on a theoretical analysis) of a regression model for estimating the fuel economy of motor vehicles. The statistical analysis tests the data for heteroskedasticity, investigates the use of different combinations of explanatory variables, discusses multi-collinearity, and determines the elasticities of fuel economy with respect to the various explanatory variables. Also, the analysis shows that the regression model can be treated as a case of restricted coefficients. The results of the statistical analysis -- mainly the high value of the corrected coefficient of determination, and the very high values of the test statistics of all the coefficients of the regression -- indicate that the selected model is satisfactory for the population represented by the given data.

  • Supplemental Notes:
    • Presented at SAE Passenger Car Meeting, Dearborn, Michigan, 11-15 June 1979.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Bascunana, J L
  • Publication Date: 1979-6

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Filing Info

  • Accession Number: 00308365
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 790654, HS-029 321U
  • Files: HSL, TRIS
  • Created Date: Feb 27 1984 12:00AM