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http://dx.doi.org/10.5351/KJAS.2010.23.2.263

Statistical Properties of Business Survey Index  

Kim, Kyu-Seong (Department of Statistics, University of Seoul)
Publication Information
The Korean Journal of Applied Statistics / v.23, no.2, 2010 , pp. 263-274 More about this Journal
Abstract
Business survey index(BSI) is an economic forecasting index made on the basis of the past achievement of the company and enterpriser's plan and decision for the future. Even the index is very popular in economic situations, only a little research result is known to the public. In the paper we investigate statistical properties of BSI. We define population BSI in the finite population and estimate it unbiasedly. Also we derive the variance of the estimated BSI and its unbiased estimator. In addition, confidence interval of the estimated BSI is proposed. We asserte that confidence interval of the estimated BSI is more reasonable than the relative standard error.
Keywords
Business survey index; multivariate hypergeometric distribution; self-weighting sample;
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