Question: Here is a scatterplot of the residuals for the linear model found in For Example: A linear model for retail expansion across Canada plotted against

Here is a scatterplot of the residuals for the linear model found in For Example: “A linear model for retail expansion across Canada” plotted against the predicted values:

40.0 30.0 20.0 Residuals Versus Predicted Sales 10.0 0.0 200.0 250.0 300.0

QUESTION:

Show how the plotted values were calculated. What patterns do you see in the plot? What conclusions do you draw?

40.0 30.0 20.0 Residuals Versus Predicted Sales 10.0 0.0 200.0 250.0 300.0 350.0 400.0 450.0 500.0 -10.0 -20.0 -30.0 -40.0 -50.0

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