What is the 95% confidence interval for the population mean?

什么是95%的人口置信区间是什么意思？

The calculation formulas of sample size based on the error limitation are given for estimation of population mean.

对于样本均值估计总体均值，给出了基于误差限制的样本容量的计算式。

We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.

我们有几种不同的方式去定义这个概念，取决于我们指的是，样本均值还是总体均值。

This paper deals with the incomplete sample estimation of finite population mean in existing of nonrespondent sampling units.

本文讨论了存在不回答样本单位时，有限总体均值的缺损样本估计。

The population mean is often written "x-bar." If you have a sample with n observations, it's the summation i = 1 to n of xi/n--that's the average.

人口均值经常写成“x-条形柱”，如果你有一个样本有n个观测者，是从 i=1到n和的xi/n，这是平均值。