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Center of Studies & Research

Directorate General of Planning and Studies,

Ministry of Health,

P.O. Box 393,

Postal Code 113,

Muscat


(+968) 24697551 or
(+968) 24696702


[email protected]



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Sample Size Calculator (Creative Research Systems)

http://www.surveysystem.com/sscalc.htm

This Sample Size Calculator is presented as a public service of Creative Research Systems survey software. 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.