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Sample size calculation for cross-sectional study

Sample size determination is the act used in research of selecting the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined based on the cost, time, or convenience of collecting the data. Therefore we calculate minimum sample size using statistical procedure. #SampleSize #IntraclusterCorrelationCoefficient #DesignEffect #EstimatedPrevalence #StandardDeviation