Efficiency and Sample Size Determination of Protected Data

  • Bradley WakefieldEmail author
  • Yan-Xia Lin
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11126)


This paper assesses the usefulness of a proposed multiplicative perturbation method by contrasting the statistical efficiency achieved in point hypothesis testing of simple proportions with that of the differentially private aggregated Laplace mechanism. This efficiency is evaluated by obtaining an analytical expression that determines the sample size required for protected data to retain a given significance level and power.


Noise multiplied data Hypothesis test Confidential data Data protection Multiplicative perturbation Proportions 



This research has been conducted with the support of the Australian Government Research Training Program Scholarship.


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Authors and Affiliations

  1. 1.National Institute for Applied Statistics Research Australia, School of Mathematics and Applied StatisticsUniversity of WollongongWollongongAustralia

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