The Randomized response (RR) technique with two decks of cards proposed by Odumade and Singh (2009) can always be made more efficient than the RR techniques proposed by Warner (1965), Mangat and Singh (1990), and Mangat (1994) by adjusting the proportion of cards in the decks. Abdelfatah et al....

In this paper, a family of estimators of population ratio R , product P and mean Y0 has been suggested using multi-auxiliary information under simple random sampling without replacement (SRSWOR) and its properties have been discussed. We have further suggested three families of estimators in the...

A village was selected from agro-climatic zone-5 in Punjab (India) to assess energy-resource availability, expenditure and shortcomings of the village ecosystem. Data on energy inputs and outputs were collected over a period of two years. The village had a gross power of 3.9 kW/ha and the...

Energy inputs and crop yields of rice by 209 farmers from three villages were collected over 2 years and analysed. Relations were found between crop yield and tillage, irrigation, fertilizers, and pre-harvest or total energy inputs. The 209 farmers were divided into 25 homogeneous groups by...

The paper considers a problem of estimating a finite population parameter T (α, β, γ) in two-phase and successive sampling. Asymptotic optimum estimator (AOE) in a class is identified with its approximate variance formula. Several estimators of different parameters are identified as...