In the Boxplot dialog box, complete the following steps to specify the data for your graph. If your data are arranged differently than described below, go to Choose a boxplot.
In the following worksheet, Week 1, Week 2, and Week 3 are the variables and contain the diameters of plastic pipes that are manufactured each week for 3 weeks. Machine is the group variable and indicates whether the pipes are manufactured by machine 1 or machine 2. The graph shows the distribution of diameters for each machine, clustered by week.
|Week 1||Week 2||Week 3||Machine|