在开展抽样调查工作中，数据质量评估是一个不可缺少的重要环节。通过对调查结果和总体推算数据的分析评估，可以测算和排除各种因素造成的数据差错，研究和反映事物内在的变化原因，从而对确定调查结果的可信程度做出正确的判断。 北京市批发零售贸易业餐饮业抽样调查工作经过 In carrying out the sample survey, data quality assessment is an indispensable important link. Through the analysis and evaluation of the survey results and the overall estimation data, the data errors caused by various factors can be measured and eliminated, and the inherent causes of change can be studied and reflected, so as to make a correct judgment on the credible degree of determining the survey results. Beijing wholesale and retail trade catering industry sampling survey after