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正態及對數正態分布截尾壽命試驗的參數估計

2014-10-23 16:51 作者:管理員14 來源:未知 瀏覽: 字號:

摘要:4.3 正態及對數正態分布截尾籌命試驗的參數估計 (1)極大似然估計 當樣本較大時,正態分布均值和標準差的極大似然估計是具有良好性質的估計量。從壽命為正態分布的總體中抽取n個試樣進行定時截尾壽命試驗,試驗到二。時結束,共失效r個,失效時間為 則壽命的

4.3  正態及對數正態分布截尾籌命試驗的參數估計
    (1)極大似然估計
    當樣本較大時,正態分布均值和標準差的極大似然估計是具有良好性質的估計量。從壽命為正態分布的總體中抽取n個試樣進行定時截尾壽命試驗,試驗到二。時結束,共失效r個,失效時間為
          失效時間
則壽命的均值  和標準差  的極大似然估計為
壽命的均值
極大似然估計用表1
極大似然估計用表2
極大似然估計用表3
極大似然估計用表4
極大似然估計用表5
極大似然估計用表6
極大似然估計用表7
41.2-9解
最佳線性無偏估計表1
最佳線性無偏估計表2
最佳線性無偏估計表3
最佳線性無偏估計表4
最佳線性無偏估計表5
最佳線性無偏估計表6
41.2-10解
簡單線性無偏估計1
簡單線性無偏估計2
簡單線性無偏估計3
 
(責任編輯:laugh521521)
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