An improved randomized response model for simultaneous estimation of means of two quantitative sensitive variables

Abstract

We propose an improved randomized response model for the simultaneous estimation of population means of two quantitative sensitive variables by using blank card option that make use of one scramble response and another fake response. The properties of the proposed estimator have been analyzed and empirical studies are performed to show its dominance over existing estimators along with enhance privacy protection of the respondents. Suitable recommendations have been made to the survey practitioners.

KEYWORDS:

• Blank card
• estimation of two means
• privacy protection
• randomized response technique
• two quantitative sensitive variables

MATHEMATICS SUBJECT CLASSIFICATION:

• 62D05