Browsing by Author "Wafula, Charles"

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    • ROBUST ESTIMATION OF VARIANCE IN THE PRESENCE OF NEAREST NEIGHBOUR IMPUTATION 

      Wafula, Charles; Otieno, Romanus Odhiambo; Mwenda, Mugo Maxwell (African Journal of Science and Technology, 2003)
      The problem of estimating the variance of an estimator of the population total when missing values have been filled using a Nearest Neighbour (NN) imputation method is considered. The estimator is developed assuming a more ...

    • Robust estimation of variance in the presence of nearest neighbour imputation 

      Wafula, Charles; Otieno, Romanus Odhiambo; Mwenda, Mugo Maxwell (African Network of Scientific and Technical Institutions (ANSTI), 2003)
      The problem of estimating the variance of an estimator of the population total when missing values have been filled using a Nearest Neighbour (NN) imputation method is considered. The estimator is developed assuming a more ...