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This page is designed to help you determine the sample size you may need for your next research project, thereby freeing up your time so you can focus on other important research design and execution issues such as sample selection procedures, research and questionnaire design, quality control mechanisms, and data analytic and interpretation techniques.

To determine the sample size you may need for your next research project, simply answer the few questions posted below and click on the button at the bottom of the page.


The size of the population targeted by my research is  , which consists of sub-populations of interest (e.g.: trade areas, different consumer groups, etc.).  I would like the result to be accurate to within  out of 100 times.

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