Table 2 show an estimation of relative priority for sample level 1 technical criteria.
表2展示了级别为1的技术标准样例的相对优先权的评估。
To introduce sample selection model and its estimation method.
介绍样本选择模型及其估计方法。
Results: Deduce the formula of the interval estimation of small sample and large sample.
结果：分别就小样本、大样本推导出区间估计公式。
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