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This paper is from Session 3J: Sampling for surveys

which comes under Topic 3: Statistics education at the post-secondary level             Full topic list

(Tuesday 4th, 14:00-15:30)

Capture-recapture sampling: a student project

Presenter

• Bruno de Sousa (Portugal)

Abstract

Capture-Recapture Sampling is used when one is interested in estimating the size N of a certain population. With the help of EXCEL, we will illustrate how a student can estimate the size of a population using this technique. Different estimators for N will be considered, and the sampling distribution of the estimated values will be studied. Confidence intervals for N will be proposed and its interpretation will be presented. Some of the problems that we may encounter with this methodology will be briefly discussed, and a simulation in which the first captured individuals remain in a certain region of the population will be shown as an example of the effect that such behavior has on the estimated values.