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When a Black Belt performs a Simple Linear Regression and observes the Residuals versus Fits plot, he observes two point

Posted: Wed Dec 08, 2021 5:32 am
by answerhappygod
When a Black Belt performs a Simple Linear Regression and observes the Residuals versus Fits plot, he observes two points shooting way out of the 0 Residual mark. What is the important thing he should infer?

That the data may be incorrect
That the data may suffer from a lack of fit
That the data may be an effect of special cause variability
That the data needs treatment