Linear Modelingeasy
0:00.0
A researcher creates a residual plot for a linear regression model (residuals on vertical axis, fitted values on horizontal axis). The plot shows residuals randomly scattered near zero, but the vertical spread of residuals increases as fitted values increase, forming a "funnel" or "cone" shape. What does this pattern indicate?
A researcher creates a residual plot for a linear regression model (residuals on vertical axis, fitted values on horizontal axis). The plot shows residuals randomly scattered near zero, but the vertical spread of residuals increases as fitted values increase, forming a "funnel" or "cone" shape. What does this pattern indicate?