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Index/Topics/Power Calculations

Power Calculations

Power calculations are mentioned as a method to determine the required sample size to detect a statistically significant difference.

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Jan 23, 2026

In statistics, how meaningful is the gap between 25% and 30% in sample proportions?

— 25% versus 30% — can be either trivial or important depending on , variability and the stakes; statistical tools like the standard error, and determine whether that gap is unlikely to be noise or li...

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