The paper focused on the potential problems among the sample survey of industrial enterprises under the designated size, such as the application of sample and associated material, empty and duplicate name in the sampl...The paper focused on the potential problems among the sample survey of industrial enterprises under the designated size, such as the application of sample and associated material, empty and duplicate name in the sampling frame, and the missing enterprise of sampling frame.展开更多
The paper firstly reviews several important incidents of the second half of last century.It further discusses the rationality of application of mathematical statistics to analysing social and economic problems,explain...The paper firstly reviews several important incidents of the second half of last century.It further discusses the rationality of application of mathematical statistics to analysing social and economic problems,explains what trans-science analysis across mathematical statistics and economics is and the status of traditional social and economical statistics in the system of statistical subjects.展开更多
The paper discusses briefly the mistake to take 1% of the population as the samples of 1% pupulation sample survey and demonstrates the procedure to choose samples according to the current regulation.
为了导出指数平滑法的计算公式,首先需要说明一下 n 次多项式的不同表达方式。如果有关于变量 T 的 n 次多项式做为事物未来发展的趋势模型。式中,t 表示现在时间;T 表示未来时间(T=0,1,2,…);(?)t+T 表示把①式做为预测模型所求出的预...为了导出指数平滑法的计算公式,首先需要说明一下 n 次多项式的不同表达方式。如果有关于变量 T 的 n 次多项式做为事物未来发展的趋势模型。式中,t 表示现在时间;T 表示未来时间(T=0,1,2,…);(?)t+T 表示把①式做为预测模型所求出的预测值,其中,(?)t+o=(?)展开更多
文摘The paper focused on the potential problems among the sample survey of industrial enterprises under the designated size, such as the application of sample and associated material, empty and duplicate name in the sampling frame, and the missing enterprise of sampling frame.
文摘The paper firstly reviews several important incidents of the second half of last century.It further discusses the rationality of application of mathematical statistics to analysing social and economic problems,explains what trans-science analysis across mathematical statistics and economics is and the status of traditional social and economical statistics in the system of statistical subjects.
文摘The paper discusses briefly the mistake to take 1% of the population as the samples of 1% pupulation sample survey and demonstrates the procedure to choose samples according to the current regulation.
