Use a one-way analysis of variance (ANOVA) when you have a categorical factor and a continuous response and want to determine whether the population means of two or more groups differ. To use an ANOVA, you must collect a sample of data at each level of the X variable.

For example, a carpet manufacturer wants to determine whether there are differences in durability among several types of carpet. To see an example, go to Minitab Help: Example of One-Way ANOVA.

To add output from an ANOVA, go to Add and complete a form.

Data considerations

Your data must be continuous values for Y (output) and include only one categorical variable (X) that is a fixed factor at 2 or more levels. For more details, go to Minitab Help: Data considerations for One-Way ANOVA.