Abbas Fadhel Ibraheem
Abstract
In this research, we propose statistical package for social sciences (SPSS), topredict surface roughness in turning process. Two independent data sets wereobtained on the basis of measurement: ...
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In this research, we propose statistical package for social sciences (SPSS), topredict surface roughness in turning process. Two independent data sets wereobtained on the basis of measurement: training data set and testing data set.Original length, diameter and selected length are used as independent inputvariables (parameters), while surface roughness as dependent output variable. Onthe basis of training data set, different models for surface roughness weredeveloped by multiple regression model. The multiple regression model by using(SPSS) could predict the surface roughness (Ra) with average percentage deviationof 4.6%, or 95.4%, accuracy from training data, and from testing data set that wasnot included in the multiple regression analysis with average percentage deviationof 7.9%, or accuracy of 92.1%.
