Lack-of-fit test
Encyclopedia
In statistics
, a lack-of-fit test is any of many tests of a null hypothesis that a proposed statistical model fits well. See:
Statistics
Statistics is the study of the collection, organization, analysis, and interpretation of data. It deals with all aspects of this, including the planning of data collection in terms of the design of surveys and experiments....
, a lack-of-fit test is any of many tests of a null hypothesis that a proposed statistical model fits well. See:
- Goodness of fitGoodness of fitThe goodness of fit of a statistical model describes how well it fits a set of observations. Measures of goodness of fit typically summarize the discrepancy between observed values and the values expected under the model in question. Such measures can be used in statistical hypothesis testing, e.g...
- Lack-of-fit sum of squaresLack-of-fit sum of squaresIn statistics, a sum of squares due to lack of fit, or more tersely a lack-of-fit sum of squares, is one of the components of a partition of the sum of squares in an analysis of variance, used in the numerator in an F-test of the null hypothesis that says that a proposed model fits well.- Sketch of...