Multiple choice

In which of the following sampling techniques is the ultimate size of the sample not fixed in advance?

  1. Quota sampling

  2. Cluster sampling

  3. Sequential sampling

  4. Systematic sampling

  5. Multi-stage random sampling
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C Correct answer
Explanation

Sequential sampling is a complex sample design where the ultimate size of the sample is not fixed in advance but is determined according to mathematical decisions on the basis of information yielded as the survey progresses. This design is usually adopted under acceptance sampling plan in the context of statistical quality control.

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