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Sampling Information

Sample Size Calculator --This Sample Size Calculator is presented as a public service of Creative Research Systems.  You can use it to determine how many people you need to interview in order to get results that reflect the target population as precisely as needed.  You can also find the level of precision you have in an existing sample.

Sample Size Calculation -- Calculator from SISA, which contains numerous statistics functions on-line

Response Rate Calculator -- Computes response rates using more sophisticated computations

Web Pages that Perform Statistical Calculations -- The Web pages listed here comprise a powerful, conveniently-accessible, and free multi-platform statistical software package. There are also links to online statistics books, tutorials, and related resources.

The Statistics Homepage --on-line statistics textbook.  Can help with experimental design and analysis.  Searchable

Research Methods Knowledge Base -- although oriented towards social sciences, many of the techniques apply to market research

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Revised: January 18, 2014