Linear Modelingmedium
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A researcher examines a residual plot (residuals on the y-axis, fitted values on the x-axis) and notices a diamond-shaped pattern: the residuals are tightly clustered close to zero for very low and very high fitted values, but show large spread for moderate fitted values. What does this pattern indicate?
A researcher examines a residual plot (residuals on the y-axis, fitted values on the x-axis) and notices a diamond-shaped pattern: the residuals are tightly clustered close to zero for very low and very high fitted values, but show large spread for moderate fitted values. What does this pattern indicate?