Utilization of higher order moments of scrambling variables in randomized response sampling

Estimation of Multinomial Proportions using Higher Order Moments of Scrambling Variables in Randomized Response Sampling

A New Optimal Estimator of Population Proportion in Randomized Response Sampling

A new optimal estimator of population proportion of potentially sensitive attributes in survey sampling is proposed and investigated. The proposed estimator makes use of known average values and known common variance of two scrambling variables at the data collection and estimation stages; more cooperation is expected from the respondents than in the Franklin (1989) model. The variance of the p...

The Franklin's Randomized Response Model for Two Sensitive Attributes

In this paper, we suggest a new method to estimate the proportions of two nonoverlapping sensitive attributes using the famous method of Franklin (1989: Communications in Statistics-Theory and Methods). The extension is based on the recent work of Singh and Chen (2009: Journal of Statistical Planning and Inference) where they suggest to utilize higher order moments of the scrambling variable to...

CVaR Reduced Fuzzy Variables and Their Second Order Moments

Based on credibilistic value-at-risk (CVaR) of regularfuzzy variable, we introduce a new CVaR reduction method fortype-2 fuzzy variables. The reduced fuzzy variables arecharacterized by parametric possibility distributions. We establishsome useful analytical expressions for mean values and secondorder moments of common reduced fuzzy variables. The convex properties of second order moments with ...

Community’s perception of utilization and disposal of plastic bags in Eastern Ethiopia

Plastics, one of the most abundant materials in the world today, are one of the main sources of pollution. People’s perception of using and disposing plastic bags is primordial as they tend to be a major part of household solid waste. This study aims to determine community’s perception of usage and disposal of plastic bags in Eastern Ethiopia. A quantitative cross-sectional study has been condu...