As for those statistical indicators needed to use sample survey to attain data this article discusses program of drawing sample and constructing estimator simply.
对于需要通过抽样调查获得数据的统计指标，简要讨论抽取样本和构造估计量的方案。
The major data sources are obtained from annual statistical reports and sample survey.
本资料数据主要来源于统计年报和抽样调查。
The major data sources are obtained from annual statistical reports, some from sample survey.
本资料大部分来自年度统计调查结果，一部分来自抽样调查。
The subject choice, randomized method, blind method, intra-group comparison, sample, compliance, statistical method, therapeutic effect assessment index, survey and side effects were observed.
调查内容包括研究对象选择、随机化方法、盲法、组间可比性、样本大小、依从性、统计学处理、疗效评价指标、随访和不良事件观察等。
The subject choice, randomized method, blind method, intra-group comparison, sample, compliance, statistical method, therapeutic effect assessment index, survey and side effects were observed.
调查内容包括研究对象选择、随机化方法、盲法、组间可比性、样本大小、依从性、统计学处理、疗效评价指标、随访和不良事件观察等。
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