The stepwise regression has been changed in Minitab v17. In the previous versions, this was its own tool. Now, stepwise regression is an option within the Fit Regression Model… tools. This includes the fit regression models for binary logistic regression and poisson regression. The same options for stepwise regression are used in all three of the fit regression model tools.
We will use the sleep dataset with stepwise regression to select predictors for a regression model.
We will use the total sleep column for the study and specify using the Box-Cox transformation on the response before running the stepwise regression on all two-way interactions.
The data is available at the following link from StatSci.org
:
http://www.statsci.org/data/general/sleep.html
The data is tab delimited and can be copied directly into the worksheet. Once the data is in Minitab, calculate the natural log of total sleep. See steps 1 to 5 in the Model Selection...