Bring out the distinction between sample survey and census. Describe the steps you would follow in collecting data though a sample survey. Prepare a small questionnaire for collection of income and expenditure levels of households.
Distinction between Sample Survey and Census:
Sample Survey: A sample survey is a research method where data is collected from a subset, or sample, of the population, rather than collecting data from every individual or unit in the entire population. The key points of distinction are:
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Population Coverage: In a sample survey, data is collected from a representative subset of the population, not the entire population. This subset is chosen to be representative of the whole population.
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Time and Cost Efficiency: Sample surveys are usually quicker and more cost-effective than conducting a census, as they require fewer resources and less time to complete.
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Accuracy and Precision: While a well-designed sample survey can provide accurate and reliable information about the population, there is a margin of error due ________ ____ _______ ____ ________ _________ _________ ____ ____ _____ _________ _____.
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