The View Model dialog box displays information to help you determine whether you are using the correct model.
Minitab automatically stores the most recent model for a response variable each time you run the analysis. Any model that you previously fit for that response variable is overwritten. Therefore, verify that the current model is the correct model.
An overlaid contour plot uses a model that you fit and that Minitab automatically stored in your worksheet to estimate the contours. You must fit a model before you create the overlaid contour plots. If you want to include multiple responses on the plot, you must fit a model for each response. The accuracy of the overlaid contour plot depends on how well the models represent the true relationships between the variables.
For more information, go to Stored model overview.