Abstract
Nowadays, the contact networks are growing exponentially, so conducting such massive randomized response (RRT) surveys online is possible. We improve a strategy to estimate the rare sensitive parameter under Poisson distribution using Narjis and Shabbir [1] two-stage unrelated question RRT model. We also discuss the usefulness of the proposed mixed two-stage unrelated RRT question model under stratification. Efficiency comparison between the proposed two-stage unrelated question and Narjis and Shabbir [1] RRT model is carried out numerically under simple random sampling.