Advanced statistical tools designed for medical professionals and researchers. Calculate sample sizes, estimate means, and perform hypothesis testing with confidence.
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Comprehensive guide on how to use these calculators effectively.
Read ManualCalculate sample size for estimating a population mean with specified precision and confidence.
Open CalculatorDetermine sample size for estimating a population proportion with desired accuracy.
Open CalculatorCalculate sample size for hypothesis testing of means (One-sample or Two-sample).
Open CalculatorSample size calculation for paired t-tests (Before-After studies).
Open CalculatorCalculate sample size for matched case-control studies (McNemar's test).
Open CalculatorDetermine sample size for independent case-control studies.
Open CalculatorSample size calculation for cohort studies (Prospective or Retrospective).
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