This chapter discusses the influence of individual observations on the estimated values of parameters and prediction of the dependent variable for given values of regressor variables. Methods for detecting outliers and deviation from normality of the distribution of errors are given in some detail. The material of this chapter is drawn mainly from the excellent book by Chatterjee and Hadi, 1986.
KeywordsResidual Plot Single Observation Normal Probability Plot Leverage Point Influential Observation
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