Confidence Intervals on Nonnegative Linear Combinations of Variances
针对方差线性组合的置信区间问题，提出一种优于Satterthwaite方法且易于计算的新方法。
Abstract Smith (1936) suggested a method that can be used for setting confidence limits on linear combinations of variances. This method was studied and expanded by Satterthwaite (1941, 1946) and has become known as Satterthwaite's procedure. The procedure has been widely used for the past 40 years. In this article a new procedure is proposed for this problem that is better than Satterthwaite's procedure and very easy to compute from existing tables.