Abstract For linear mixed models having two variance components, one can compute exact confidence intervals for a ratio of the variances. We show that there is a family of unbiased intervals and highlight those unbiased intervals which have short expected length.

中文翻译：

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方差分量比率的无偏置信区间族

摘要 对于具有两个方差分量的线性混合模型，可以计算方差比率的准确置信区间。我们展示了一系列无偏区间，并突出显示那些预期长度较短的无偏区间。