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Predictions from regression

  • G. Barrie Wetherill
  • P. Duncombe
  • M. Kenward
  • J. Köllerström
  • S. R. Paul
  • B. J. Vowden
Chapter
Part of the Monographs on Statistics and Applied Probability book series (MSAP)

Abstract

In this chapter we are going to discuss the use of a fitted regression model to make predictions. Clearly, a prediction is obtained by merely inserting the new values of the explanatory variables into the fitted regression equation, and this chapter concentrates mainly on interval estimates. Before going into the question of the variance associated with a prediction, we need to show clearly what the effect is of underfitting and overfitting. Both of these can be described as ‘model fitting’ errors and both can have a severe effect on predictions.

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Copyright information

© G. Barrie Wetherill 1986

Authors and Affiliations

  • G. Barrie Wetherill
    • 1
  • P. Duncombe
    • 2
  • M. Kenward
    • 3
  • J. Köllerström
    • 3
  • S. R. Paul
    • 4
  • B. J. Vowden
    • 3
  1. 1.Department of StatisticsThe University of Newcastle upon TyneUK
  2. 2.Applied Statistics Research UnitUniversity of Kent at CanterburyUK
  3. 3.Mathematical InstituteUniversity of Kent at CanterburyUK
  4. 4.Department of Mathematics and StatisticsUniversity of WindsorCanada

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