Cost limitations

This method determines sample size on the basis of the budget allocated to the project. It first involves subtracting from the available budget all non-sampling-

related costs (for example, the fixed cost of designing the survey, questionnaire preparation, data analysis and report generation) and second dividing this amount by the estimated cost per sampling unit to arrive at the desired sample size. The approach is unsatisfactory because it emphasises cost to the exclusion of all other factors, especially precision.

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