Overview for Power and Sample Size for 2-Level Factorial Design

Use Power and Sample Size for 2-Level Factorial Design to examine the relationship between power, number of replicates, effect size, and the number of center points. Use these calculations for the following reasons:

Before you collect data for a designed experiment to ensure that your design has enough replicates to achieve acceptable power.
After a designed experiment, to evaluate whether the designed experiment needed more experimental runs.

Where to find this analysis

To perform a power and sample size calculation for a 2-level factorial design, choose Stat > Power and Sample Size > 2-Level Factorial Design.

When to use an alternate analysis

Minitab also performs calculations for these design types:

Power and Sample Size for General Full Factorial Design
Power and Sample Size for Plackett-Burman Design

For more information on these design types, go to Factorial and fractional factorial designs and Plackett-Burman designs.

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