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Mr. Jones is investigating nurses
Solution
When the data items vary considerably in size, a simple random or a systematic random sample
of items does not produce a good estimate due to high variability. In such a situation we get a
better estimate by giving higher probability of selection to the larger data items. We use
Sampling with unequal probabilities

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Mr. Jones is investigating nursesSolutionWhen the data items v.pdf

  • 1. Mr. Jones is investigating nurses Solution When the data items vary considerably in size, a simple random or a systematic random sample of items does not produce a good estimate due to high variability. In such a situation we get a better estimate by giving higher probability of selection to the larger data items. We use Sampling with unequal probabilities