Specify the options for Create Plackett-Burman Design

Stat > DOE > Factorial > Create Factorial Design > Options

Stat > DOE > Screening > Create Screening Design > Options

Randomize runs

Select whether Minitab randomizes the run order within each block or stores the design in standard order. Randomization reduces the chances of confounding between the effects of factors in your study with the effects of factors that are not in the study, particularly effects that are time-dependent.

Sometimes, you do not want to randomize the design because factor levels are difficult or expensive to change. Instead, you may want use a split-plot design to minimize the factor level changes. For more information on split-plot designs, go to Split-plot designs in design of experiments.

Base for random data generator
Specify a base for the random data generator so that you can obtain the same random order when you create another design. When you enter the same base, the run order is the same.

After the design is in the worksheet, you can change how you view the design and re-randomize the design. To view a design in standard order or random order, use Display Design. To randomize or re-randomize a design, use Modify Design. For more information, go to Overview for Display Design and Modify Design.

Store design in worksheet

To see the number of runs, the alias table, and the other properties of a design without storing the design in a worksheet, deselect Store design in worksheet.

If you want to see the properties of various designs (such as alias tables) before selecting the one design you want to store, deselect this option. If you want to analyze a design, you must store it in the worksheet.