Conduct a Lack of Fit TestConduct a Lack of Fit Test
- Select Stat >> Regression >> Regression ... >> Fit Regression Model ...
- Specify the response and the predictor(s).
- Minitab automatically recognizes replicates of data and produces the Lack of Fit test with Pure error by default.
- Select OK. The output will appear in the session window.
The data set bluegills.txt contains the lengths (in mm) and ages (in years) of n = 78 bluegill fish. Is there sufficient evidence to conclude that there is a lack of linear fit between y = length and x = age of bluegill fish?
Minitab Dialog Box
Regression Analysis: length versus age
|Analysis of Variance|
|Source||DF||Adj SS||Adj MS||F-value||P-value|