Solve the power equation. Exactly one of effect, n, power must be omitted. power({ test: '2-sample t', effect: 1, n: 20, sigma: 1 }) → power power({ test: '1-sample t', effect: 0.5, power: 0.9 }) → n power({ test: 'one-way anova', groups: 4, n: 10, power: 0.8 }) → effect (max difference)
effect
n
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Solve the power equation. Exactly one of
effect,n,powermust be omitted. power({ test: '2-sample t', effect: 1, n: 20, sigma: 1 }) → power power({ test: '1-sample t', effect: 0.5, power: 0.9 }) → n power({ test: 'one-way anova', groups: 4, n: 10, power: 0.8 }) → effect (max difference)