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正态总体均值的枢轴量及区间估计的教学

WANG Qiming,SHI Zhenghua

Journal of Science of Teachers' College and University（2023）

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Abstract
枢轴量及区间估计是数理统计教学中的难点.基于枢轴量选择不唯一的特点,探讨枢轴量选择的步进式教学方法,由浅入深讨论了单个样本构造枢轴量、两样本构造枢轴量、样本均值构造枢轴量、样本中位数构造枢轴量等方法,分析不同枢轴量对应区间估计结果,对比了精度的差异性,辅以数值模拟和可视化方法,使学生对枢轴量和区间估计的思想有更深入的理解.
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Key words
normal distribution,pivot quantity,interval estimation,stepwise teaching
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