Title: Study on the survey design of China environmental protection industry
Abstract: Base on the current statute and existing problem of China environmental industry survey practices,a general framework with general investigation as the basis and sampling survey as the main part was designed for the survey of environmental protection industry.Stratify sampling and equal sample sized importance sampling according to production value and industry classification separately were performed to verify the data of China environmental protection industry in 2004.Results showed that the error of stratify sampling was less than that of importance sampling and the error of production value based sampling was less than that of industry based sampling.So,among the 4 sampling methods,importance sampling was superior in the practical survey sampling,and sample sized should be determined by industry based stratify sampling so as to minimize the survey error.Sampling survey could perfect estimate the overall situation of environmental industry with a lower cost,simultaneously it was practical,feasible and could provide reliable basis for continuous observation of environment protection industry.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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