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Open Source Statistics for Public HealthDocumentationTestingAboutHelp

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Author(s)
Statistics
Kevin M. Sullivan, Emory University
based on code from John C. Pezzullo
Interface
Andrew G. Dean, EpiInformatics.com,
and Roger A. Mir
Sample Size for a Proportion or Descriptive Study
This module calculates sample size for determining the frequency of a factor in a population. Sample sizes are provided for confidence levels from 90% to 99.99%.

A finite population correction will be applied if the population size is not large. For samples that are not random or systematic, a design effect other than 1.0 may be entered. The calculated sample sizes are multiplied by the design effect.

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