A Class of Improved Estimators for Estimating the Population Mean in Double Sampling and its properties

In this paper a class of improved estimators has been proposed for estimating population mean in Two Phase (Double) Sampling when information of auxiliary variable is available. Under Simple Random Sampling (SRSWOR), expressions of Mean Square Error and bias have been derived to make comparison of s...

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Veröffentlicht in:	Journal of statistics (Lahore) 2017-12, Vol.24 (1), p.120
Hauptverfasser:	Khan, Hina, Siddiqi, Ahmed Faisal, Masood Amjad Khan
Format:	Artikel
Sprache:	eng ; ger
Schlagworte:	Approximation Bias Estimation Estimators Mean square errors Population Population statistics Random sampling Variables
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