JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 1995, Vol. 19 ›› Issue (01): 98-101.doi: 10.3969/j.jssn.1000-2006.1995.01.022

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COMPARISON OF 3P SAMPLING WITH πPSWOR SAMPLING

Yi Nengjun   

  1. College of Forest Resources and Environment Nanjing Forestry University Nanjing 210037
  • Online:1995-03-18 Published:1995-02-18

Abstract: it is proved in this paper that under the assumption of a super-population model.the precision of 3P sampling with a ratio estimator is asymptotically equal to the precision of πPSWor sampling with Horvitz-Thompson estimator.