Sample Size Estimation

Sample size partly depends on the purpose of the study and statistical quality needed for survey findings, which in turn relates to how the results will be used. No single rule that can be applied to determine the sample size for all studies. Much depends on the professional and financial resources available. The decision on the sample size in the final instance is a matter of judgment rather than of calculation. The degree of accuracy, that is, the precision required gives guideline but normally it is not known. Our research experts have been in the business of sample size estimations for more than 20 years, so, this will not be a problem to us.

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