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一、样本县抽选方法说明根据部局《方案》要求,考虑到目前掌握的资料情况,抽样方法决定采用由省直接抽取部分县作为样本点。被抽中的县再实施抽样调查统计方法,将结果经市局审核后直接上报省局,由省局根据样本县统计结果估算全省目标值。这次样本县的抽选方法是:采用1999年底各县市区主要经济指标一览表统计数据,根据营业收入、出口产品交货值、从业人数三项指标综合排序结果,等距抽选样本点。抽选比例15%,经计算样本数为25,组距7(全省县级汇总单位175个,175×15%=26,175÷26=6.7,取近似值7,抽选出样本县数25个),即按综合排序结果。依次7个县为一组,组中值即为样本县。二、样本县实施抽样调查统计具体操作步骤
First, the sample county lottery method description According to the Ministry of “program” requirements, taking into account the current grasp of the information, the sampling method decided to adopt the direct extraction of some counties from the province as a sample point. The sampled counties will then carry out sample survey and statistical methods, and the results will be directly reported to the provincial bureau after being examined by the municipal bureau. The provincial bureau will estimate the provincial target value based on the statistical results of the sample counties. The sample county sampling method is: by the end of 1999 counties in major economic indicators list statistical data, based on operating income, export delivery value, the number of employees comprehensive ranking of the three indicators, isometric sampling points . The sampling ratio is 15%. The calculated sample size is 25 and the group spacing is 7 (175 county-level summary units in the province, 175 × 15% = 26,175 ÷ 26 = 6.7, approximate value 7, and 25 sample counties) , According to the comprehensive sorting results. Followed by seven counties as a group, the median group is the sample county. Second, the sample counties in the implementation of sample survey statistics specific steps