Statements about residual analysis for simple linear

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Say whether the following statements about residual analysis for simple linear regression are true or false and explain your answers.

{a} If the sample mean of the residuals is zero, then this supports the linearity condition for the model.

{b} 15m ideal residual plot for a valid model will display residuals with similar variation no matter the value on the horizontal axis.

{c} A residual plot that has a predictor variable excluded from the model on the horizontal axis provides no useful information about the adequacy of the model.

Reference no: EM132843584

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