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On The Estimation of Population Mean in Rotation Sampling |
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PP: 131-136 |
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Author(s) |
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Housila P. Singh,
Surya K. Pal,
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Abstract |
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| This paper deals with the problem of estimating the current population mean in two-occasion
rotation sampling using the known population standard deviation ( z S ) along with known population
mean ( Z ) of the auxiliary character z on both the occasions and the information on the study character
from the previous occasion. The proposed estimator has been compared with simple mean estimator when
there is no matching and the optimum estimator, which is a combination of the means of the matched and
unmatched portion of the sample at the second occasion. Optimum replacement policy and the efficiency of
the suggested estimator have been discussed. To examine the merits of the proposed estimator an empirical
study is carried out. |
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