CONFIDENCE INTERVALS FOR FRACTION IN FINITE POPULATIONS: MINIMAL SAMPLE SIZE
CONFIDENCE INTERVALS FOR FRACTION IN FINITE POPULATIONS: MINIMAL SAMPLE SIZE
Author(s): Wojciech ZielińskiSubject(s): Economy
Published by: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie
Keywords: confidence interval; sample size; fraction; finite population
Summary/Abstract: Consider a finite population of N units. Let θ∈(0,1) denotes the fraction of units with a given property. The problem is in interval estimation of θ on the basis of a sample drawn due to the simple random sampling without re¬pla¬ce¬ment. It is of interest to obtain confidence intervals of a prescribed length. In the paper the minimal sample size which guarantees the length to not exceed the given value is calculated.
Journal: Metody Ilościowe w Badaniach Ekonomicznych
- Issue Year: XIV/2013
- Issue No: 2
- Page Range: 309-315
- Page Count: 7
- Language: English