Children tap the legs for local seniors at an elderly care center in Deqing County of Huzhou City, east China's Zhejiang Province, Oct. 10, 2024. Photo: Xinhua The National Bureau of Statistics is set ...

据国家统计局的消息，我国将于2025年开展全国人口抽样调查，在全国共抽取约500万户、1400万人，抽样比例为全国人口的1%。 China will launch a nationwide population sample survey in 2025, according to the National Bureau of Statistics (NBS). Some 14 million ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Under a linear regression model, the best linear unbiased estimator (BLUE) for a finite population total can be obtained. The problem studied here is that of estimating the variance for setting ...

The work of Royall and Herson (1973a, 1973b), ensuring the robustness of the standard ratio estimator against polynomial superpopulation models by choosing balanced samples, is extended to a more ...

If your analysis should include a finite population correction (fpc), you can input either the sampling rate or the population total using the RATE= option or the TOTAL= option. You cannot specify ...

Let’s imagine that we are studying a species of beetle. The beetles come in many different colors, and we want to know how common the orange (O) coloring is in this population. This population of ...