以統計推論品管人員與公共工程品質之關聯性

The Study of the Relationship between Quality Assurance Personnel and Quality of Public Construction Project by Using Statistical Inferences

康德龍(Derick Kong) ； 王隆昌(Lung-Chuang Wang) ； 徐宗宏(Tsung-Hung Hsu)

《中國土木水利工程學刊》 25卷1期 (2013/03) Pp. 71-77

https://doi.org/10.6652/JoCICHE.201303_25(1).0007

摘要

公共工程建設在台灣經濟推動上，一直扮演著火車頭的角色。為使公共工程施工品質再提升，工程會自民國101年7月起，將品管人員任用門檻，由原來工程金額5,000萬元調降為2,000萬元。品管人員之設立是否真有助於工程品質之提升，又前述任用門檻之調降是否有學理之依據，均有進一步探討之必要。因此，本研究搜集民國100至民國101年的公共工程實際案例2,395件，運用嚴謹統計之雙母體平均數差異μ1～μ2檢定－獨立樣本與變異數分析，藉以提供品管人員遴用門檻之學理依據，以作為研擬公共工程施工品質政策之參考。

關鍵字

品管人員 ； 變異數分析 ； 雙母體平均數差異檢定 ； 公共工程

並列摘要

For years, the public construction projects have played a leading role in promoting Taiwan's economy. For the purpose of improving construction quality, the public construction committee of the government plans to lower the recruiting threshold, meaning the specific contract price that contractor has to hire the full-time quality assurance personnel, from NT$50 million to NT$20 million since July, 2012. However, both the effectiveness of quality assurance personnel on construction quality and the theoretical background of the aforementioned recruiting threshold of quality assurance personnel are still in question. Therefore, the present study first collected actual public construction projects, 2,395 cases, from 2011 to 2012 and verified those data by rigorous statistical methods such as independent samples T-test and analysis of variance (ANOVA). The research result places sound foundations for setting recruiting threshold of the quality assurance personnel as well as provide references for policymaking of the public construction quality policies.

並列關鍵字

quality assurance personnel ； analysis of variance (ANOVA) ； independent sample T-Test ； public construction