Show that the average residual is zero, that is, show that (n^{-1} sum_{i=1}^{n} e_{i}=0).
Question:
Show that the average residual is zero, that is, show that \(n^{-1} \sum_{i=1}^{n} e_{i}=0\).
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In the context of linear regression residuals are defined as the difference between the observed values and the values predicted by the regression model Mathematically the residual ei for the ith obse...View the full answer
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Related Book For 
Regression Modeling With Actuarial And Financial Applications
ISBN: 9780521135962
1st Edition
Authors: Edward W. Frees
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