Applications of Systematic
Sampling:
· 1.
In Gallup
Poll: Systematic sampling is a common sampling design in many opinion surveys.
The Gallup poll
is a popular example. In the United States,
the Gallup poll
begins its sampling process by listing election-districts and then
systematically selecting the districts for a follow-up study of households.
·
2.
In Quality Control: The systematic sampling is
extensively used in manufacturing industries for statistical quality control of
their products. Here a sample is obtained by taking an item from current
production stream at regular intervals.
·
3. In Auditing: In auditing accounts, the most natural
way to sample a list of accounts to check compliance with accounting procedures
or to verify deposited amount, is to choose accounts systematically for
verification.
·
4. In Market Research: Systematic sampling has its wide
applications in market research. Every 20th departing customer at a checkout
counter may be asked his or her opinion on the test, color or texture of a food
item.
·
5. In Crop Estimation: In crop yield estimation,
systematic sampling has been extensively used. In estimating the proportion of
diseased trees, foresters may systematically sample field plots.
·
6. In Health Studies: In recent years, UNICEF and WHO
have been extensively used systematic sampling method worldwide in child
nutrition, iodine deficiency disorders, and arsenicosis surveys to assess the
prevalence of these diseases.
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