Testing Lack of Fit in a Mixture Model - Bok av John Shelton - Inbunden
Abstract:A common problem in modeling the response surface in most systems, and in particular in a mixture system, is that of detecting lack of fit, or inadequancy, of a fitted model of the form E(Y) = Xg, in comparison to a model of the form E{Y) = Xe,+ X B postulated as the true model. One method for detecting lack of fit involves comparing the value of the response observed at certain locations in the factor space, called \check points,\ with the value of the response that the fitted model predicts..