The model $E ( y ) = \beta _ { 0 } + \beta _ { 1 } x$ was fit to a set of data, and the following plot of residuals against x values was obtained. Interpret the residual plot. 12.12 Some Pitfalls: Estimability, Multicollinearity, and Extrapolation

Question

The model $E ( y ) = \beta _ { 0 } + \beta _ { 1 } x$ was fit to a set of data, and the following plot of residuals against x values was obtained.  Interpret the residual plot. 12.12 Some Pitfalls: Estimability, Multicollinearity, and Extrapolation

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The Answer of The model $E ( y ) = \beta _ { 0 } + \beta _ { 1 } x$ was fit to a set of data, and the following plot of residuals against x values was obtained.  Interpret the residual plot. 12.12 Some Pitfalls: Estimability, Multicollinearity, and Extrapolation

The Model E(y)=β0+β1xE ( y ) = \beta _ { 0 } + \beta _ { 1 } xE(y)=β0​+β1​x

The Model $E ( y ) = \beta _ { 0 } + \beta _ { 1 } x$