生物資源暨農學院: 農藝學研究所指導教授: 廖振鐸; 蔡欣甫黃梅綺Huang, Mei-ChiMei-ChiHuang2017-03-062018-07-112017-03-062018-07-112016http://ntur.lib.ntu.edu.tw//handle/246246/275980良質率為工業或其他應用領域中常被用來評估品質的一個最重要指標(index),其定義為一個感興趣的品質特徵變數(quality characteristic)落在預先指定規格界限內的機率,品質特徵變數(Y)為統計學上的隨機變數(random variable),規格界限包括規格下限(A)以及規格上限(B),如工業衛生的問題,一位工人在工廠工作,其環境測定放射線物質(Y)是否超過了職業接觸限值(B),職業接觸限值通常是由政府機構設置,這是想要估計一個隨機變量超過某個規格界限,即在估計良質率。本論文是在簡單線性迴歸上來估計單邊良質率的信賴下界,我們使用廣義樞紐量(generalized pivotal quantity)來建構, 經由統計模擬的結果來看,不論是覆蓋率還是期望長度都很合理,在不同設定的樣本數和母體變異數組合下,覆蓋率都接近我們宣稱的信心水準,此外,我們藉由兩個例子來說明本方法在實際應用上的可行性,結果顯示,本論文所使用廣義樞紐量法為適合可靠的方法。In this study, we investigate the construction of lower confidence limit for unilateral conformance proportions under a simple linear regression model. Let a quality characteristic of interest be denoted by Y, then P(Y≥A) or P(Y≤B) are called the unilateral conformance proportions, where A and B denote the specification acceptance limits. We consider the situation that Y is fitted by the simple linear regression model, and develop an approach for constructing lower confidence limits for the unilateral conformance proportions based on the concept of a generalized pivotal quantity (GPQ). The performance of the proposed method is evaluated through detailed simulation studies and real data analysis. It is shown that the proposed method is easy to implement and reasonably satisfactory for practical use.832114 bytesapplication/pdf論文公開時間: 2017/8/26論文使用權限: 同意有償授權(權利金給回饋學校)信賴區間廣義樞紐量假設檢定品質管制迴歸分析confidence limitgeneralized pivotal quantityhypothesis testquality controlregression analysis簡單線性迴歸模式下的單邊良質率之區間估計Unilateral Conformance Proportions under Simple Linear Regression Modelsthesis10.6342/NTU201603246http://ntur.lib.ntu.edu.tw/bitstream/246246/275980/1/ntu-105-R99621204-1.pdf