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Examples for Power Analysis Sample Size Calculator
Explore real-world examples showing how this skill works with different inputs and outputs.
A/B Test Sample Size for Signup Conversion
Calculate required sample size and test duration for an A/B test on a signup page with 4.2% baseline conversion, targeting a 15% relative improvement with 750 daily visitors per variant.
Sample Size for Clinical Intervention Grant Proposal
Calculate sample size for a clinical intervention study with medium effect size (d=0.5), 80% power for grant proposal, accounting for 20% participant attrition with ready-to-use methodology language.
Post-Hoc Power Analysis for Underpowered Study
Diagnose whether a completed study with p=0.08 was underpowered by calculating achieved power from sample sizes and means, with recommendations for reporting and follow-up.