A CLASS OF ESTIMATORS OF POPULATION VARIANCE IN STRATIFIED RANDOM SAMPLING

KOYUNCU N.

6th International Days of Statistics and Economics, Prague, Çek Cumhuriyeti, 13 - 15 Eylül 2012, ss.605-613 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Prague
  • Basıldığı Ülke: Çek Cumhuriyeti
  • Sayfa Sayıları: ss.605-613
  • Hacettepe Üniversitesi Adresli: Evet

Özet

This study proposes a class of variance estimators for estimating population variance of a study variable using information of auxiliary variable under stratified random sampling scheme. The bias and mean square error of the estimators belonging to class are obtained and the optimum parameters of class are given in stratified random sampling. Efficiency comparison is carried out using a real data set. In this data set, sales profit and waste product of a company are used as a study and auxiliary variable respectively. Moreover we have found that suggested class of estimators are more efficient than classical estimators.