Nonresponse in a Periodic Sample Survey
针对周期性调查中的历史数据插补策略，建立参数模型进行分析，并开发检验方法比较不同历史值设定，最后用月度汽油销售数据展示指数平滑法的优势。
A parametric model is developed for analyzing the updated historical (ratio of identicals) imputation strategy in a periodic survey. A test is then developed for comparing alternative formulations of the historical values. The benefits of exponentially smoothing in this context are demonstrated using monthly gasoline sales data.