英语翻译Sample size for determining a mean:Smaller samples are often sufficient for estimating characteristics of populations of numerical(measured) data.

英语翻译Sample size for determining a mean:Smaller samples are often sufficient for estimating characteristics of populations of numerical(measured) data.
英语翻译
Sample size for determining a mean:
Smaller samples are often sufficient for estimating characteristics of populations of numerical(measured) data.

英语翻译Sample size for determining a mean:Smaller samples are often sufficient for estimating characteristics of populations of numerical(measured) data.
较小的样本往往足够估计种群特征的数值（单位）的数据.