Methods On the basis of binormal model, maximum likelihood estimation was applied to areas calculation, and approximately normal method to confidence interval estimation and hypothesis test.
方法在双正态模型基础下应用ML估计方法计算ROC曲线下面积，正态近似法估计面积的可信区间及假设检验。
Making use of two order statistics to construct a sample fonction for confidence interval estimation of the scale parameter, the probability density function of the sample function is discussed.
最近，对指数分布的参数和正态分布的位置参数讨论了基于残缺观测数据的区间估计”，‘’。
Business case estimation accuracy is usually very low, with the actual confidence interval often higher then 50%, as no detailed functional and project analysis is usually performed.
业务案例评估的精度经常很低，由于通常不能完成细节的功能分析，可信区间通常高达50%。
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