Use Power and Sample
Size for General Full Factorial Design to examine the relationship between power, number of replicates, and the maximum difference between main effect means. 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 general full factorial design, choose Stat > Power and Sample Size > General Full Factorial Design.
When to use an alternate analysis
Minitab also performs calculations for these design types: