Click on the following links. Please note these will open in a new window.

This website provides an example from a biological standpoint about the necessity of a homoscedasticity test.

This website lists the definition, advantages, and disadvantages of the nonlinear method of least squares.

This website distinguishes between outliers and high leverage observations through explanation and examples.

This website serves as a brief introduction to multiple regression.

This presentation is an in-depth look at the importance of residuals.