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六、各级样本的具体抽选方法1.一级样本单位的抽选.第一步,将抽样总体中除省会城市、自治区首府及计划单列市以外的所有一级单位按上年销售总额由大到小排队并编号.第二步,计算抽选距离,即组距K=N’/n’(k为最接近于N’/n’的整数).其中n’是总体中不含省会城市、自治区首府及计划单列市以外的所有一级单位总数,n’同样是
Sixth, the specific sample selection methods at all levels 1. The first sample unit of the lottery. The first step, the sampling in addition to capital cities, autonomous regions and municipalities except for the city at all levels of units according to the previous year total sales from The second step, calculate the sampling distance, that is, the group distance K = N ’/ n’ (k is the closest integer to N ’/ n’) where n ’is the total does not contain the provincial capital The total number of units at all levels except cities, autonomous regions and municipalities specifically designated for planning, n ’