| 研究生: |
馮博冠 Feng-Bo Guan |
|---|---|
| 論文名稱: |
柏努力條件下常態分布之參數估計 Parameter Estimations of Condition Gaussian Distribution Given Bernoulli Distribution |
| 指導教授: |
許玉生
Yu-Sheng Hsu |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 數學系 Department of Mathematics |
| 畢業學年度: | 90 |
| 語文別: | 中文 |
| 論文頁數: | 28 |
| 中文關鍵詞: | 統計量 |
| 相關次數: | 點閱:11 下載:0 |
| 分享至: |
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摘 要
常態分布之樣本平均數及樣本變異數具有下列統計性質:(1)二者均為充分統計量.(2)二者獨立.(3)樣本平均數為
MLE , UMVUE 及動差估計式.(4)樣本變異數為 MLE ,動差估計式,經適當修正可為 UMVUE .(5)二者之變異數為
Cramer-Rao 下界.(6) 二者均為漸近有效估計式.本文探討柏努力條件下,條件樣本平均數及條件樣本變異數是否
仍有上列性質 .
Abstract
The sample mean and sample variance of a Gaussian distribution have the following nice statistical properties:(1)both are sufficient,(2)they are independent,
(3)sample mean is m.l.e., UMVUE, and method of momemt estimator,(4)sample variance is m.l.e.,method of moment estimator and UMVUE if multiplied by a constant,
(5)both estimators have variances achieve the Cramer-Rao lower bound,(6)both estimators are asymptotically efficient.Based on sample obtianed from the
conditional Gaussian distribution given Bernoulli distribution,we study conditional sample mean and conditional sample variance and check if they also have
the above statistical properties.
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