| 区间估计中一个问题的探讨 |
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| 引用本文： | 胡杨利,赵晓芹.区间估计中一个问题的探讨[J].衡阳师专学报,2011(6):146-147. |
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| 作者姓名： | 胡杨利 赵晓芹 |
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| 作者单位： | 长沙理工大学数学与计算科学学院,湖南长沙410004 |
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| 基金项目： | 基金项目：长沙理工大学校教改资助项目（JG1044） |
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| 摘 要： | 讨论了正态总体的均值已知时方差的区间估计．两种方法找到了不同的置信区间，通过举例和分析x2分布表，对这两个区间进行了甄别．
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| 关 键 词： | 置信区间 正态总体 方差 x2分布 |
A Problem about Interval Estimation |
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| HU Yang-li,ZHAO Xiao-qin.A Problem about Interval Estimation[J].Journal of Hengyang Normal University,2011(6):146-147. |
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| Authors: | HU Yang-li ZHAO Xiao-qin |
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| Institution: | (Institute of Mathematics and Computing Sciences, Changsha University of Science and Technology, Changsha Hunan 410004,China) |
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| Abstract: | When the mean of a normal population is given, the confidence interval of this normal population is discussed. Two confidence intervals are found by different methods. From an example and the tabular of chi-square distribution, these two confidence intervals are discriminated. |
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| Keywords: | confidence interval normal population variance chi-square distribution |
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