辽东学院学报(自然科学版)
遼東學院學報(自然科學版)
료동학원학보(자연과학판)
JOURNAL OF LIAODONG UNIVERSITY(NATURAL SCIENCES)
2014年
1期
57-59
,共3页
概率统计%假设检验%物资量%相同总体分布
概率統計%假設檢驗%物資量%相同總體分佈
개솔통계%가설검험%물자량%상동총체분포
probability statistics%hypothesis testing%material quantity%identical overall distribution
分析称量室数据的变化规律可以很好地校验正在运行中的衡器状况,反之对检斤数据的正确与否也有着指导作用。文章分别采用Mann-Whitney U检验和Wilcoxon rank-sum检验对本钢物资量的两组样本值进行定性分析。发现:①Mann-Whitney U检验认为两组样本观测值同分布;②Wilcoxon rank-sum检验认为两组样本观测值没有显著性差异。从而得出结论:称量室数据的样本值有着相同的总体分布。
分析稱量室數據的變化規律可以很好地校驗正在運行中的衡器狀況,反之對檢斤數據的正確與否也有著指導作用。文章分彆採用Mann-Whitney U檢驗和Wilcoxon rank-sum檢驗對本鋼物資量的兩組樣本值進行定性分析。髮現:①Mann-Whitney U檢驗認為兩組樣本觀測值同分佈;②Wilcoxon rank-sum檢驗認為兩組樣本觀測值沒有顯著性差異。從而得齣結論:稱量室數據的樣本值有著相同的總體分佈。
분석칭량실수거적변화규률가이흔호지교험정재운행중적형기상황,반지대검근수거적정학여부야유착지도작용。문장분별채용Mann-Whitney U검험화Wilcoxon rank-sum검험대본강물자량적량조양본치진행정성분석。발현:①Mann-Whitney U검험인위량조양본관측치동분포;②Wilcoxon rank-sum검험인위량조양본관측치몰유현저성차이。종이득출결론:칭량실수거적양본치유착상동적총체분포。
With Mann -Whitney U test and Wilcoxon rank -sum test, two groups of samples of weighed ma-terial quantity in Benxi Steel Group Corporation were qualitatively analyzed .The result of Mann -Whitney U test showed that the observation data of the two groups of samples was identically distributed and the data of Wilcoxon rank-sum test showed that the observation data of the two groups of samples had no significant difference .It is ac-cordingly concluded that the weighed material quantity is identically distributed as a whole .