Use Power and Sample Size for One-Way ANOVA to examine the relationship between power, sample size, and the maximum difference between the means for two or more groups. Use these calculations for the following reasons:
Before you collect data for a one-way ANOVA, to ensure that your design has an adequate sample size to achieve acceptable power.
After a one-way ANOVA, to improve the design for the next study.
Where to find this analysis
To perform a power and sample size calculation for a one-way ANOVA, choose Stat > Power and Sample Size > One-Way ANOVA.
