Overview for Power and Sample Size for One-Way ANOVA

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.

When to use an alternate analysis

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