单个正态总体均数和两个正态总体均数差别的区间估计设计

Design of Intervals Estimation for a Single Normal Population Mean and the Difference between two Normal Population Means

本文推导出单个正态总体均数和两个正态总体均数差别的区间估计的样本含量设计公式,不但考虑了区间估计准确程度的可信度,还考虑了区间估计精密程度的把握度,并制作了相应的样本含量设计表,便于实际运用。

This paper introduces design formulas of sa- mple size of intervals estimation for a single normal population mean and the difference bet- weep two normal population means.No only the confidence level for accuracy but also the power for precision of interval estimation are conside- red.The relative design tables of sample, size are made for practical using conveniently.