Optimal two-stage sampling for mean estimation in multilevel populations when cluster size is informative.

Francesco Innocenti1, Math Jjm Candel1, Frans Es Tan1

  • 1Department of Methodology and Statistics, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, the Netherlands.

Summary

For hierarchical populations, probability proportional to size cluster sampling is the most efficient two-stage sampling method. This approach optimizes sample sizes under budget constraints for accurate mean estimation.

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