Mann-Whitney Test in the Evaluation of Conditioning and Loosing Technological Innovation
>Modern manufactories engage in a large number of quality control activities, in which statistical methodologies are indispensable for evaluating the effect of technological innovation. To evaluate the effect of innovation of moisture percentage control technology in the process of conditioning and loosing, statistical significance of the difference between after and before the innovation needs to be proved. The fact that the data are non-normally distributed is found after the test of normality, thus traditional T test loses its validity. When employing the Mann-Whitney test in the data, the effect of innovation of moisture percentage control technology was to be found significant (P < 0.05). The effect of technological innovation was evaluated effectively and scientifically with this method, which can be popularized in the quality control activities which produce non-normally distributed data.
文章引用: 巩鹏堃 , 徐永康 , 向 虎 , 王俊杰 , 李兴绪 (2013) Mann-Whitney检验在松散回潮技术改进评价中的应用。 管理科学与工程， 2， 88-92. doi: 10.12677/MSE.2013.24015
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