会议论文详细信息
Ninteenth Annual SAS Users Group International Conference
Colored Candies and Base SAS:A Sweet Way to Prodl,lce ChiSquare Control ChartsPart 1: Tutorial
SherriJoyce King ; King Information Company ; Rockville ; MD
PID  :  88017
来源: CEUR
PDF
【 摘 要 】
Colored candies are easytaunderstand tools thai can. iUustrate Statistical Quality Control principles. Candycompanies want each bag to have about the same piececounts of each color as the other bags. The objective ofthis tutorial is to show how Base SASsoftware can helpto improve understanding of a manufacturing processwhere homogeneity of proportions is important, usingcandy color piece counts as input to SAS programs. BaseSAS software will be used to produce a chisquare (X2)control chart that checks the stabirlly of piece counts forcandy colors during the bagfilling operation.x' is a statistical measure that compares actual values tospecifoed values. x' has three principal uses; weconcentrate here on its ability to measure homogeneity ofproportions. This tutorial (Part 1 of the topic) teaches theuse of the SAS DATA step and the PLOT procedure(among others) for this purpose. Part 2, in the Statisticssection, explores more statistical aspects of the topic. Asimulation is included in each Part. where attendees count(and subsequently consume) candies to conect data oncolor proportions in bags they are given.AUDIENCEThe tutorial assumes some knowledge of process controland a basic knowledge of SAS software. Concepts onwhich the tutorial depends will be reviewed.OVERVIEWThe first section of the tutorial introduces basic conceptsthallhe attendees need in order to fotlow the session: Stability of the bagfilling process; color piece countsas the indicator of process control.Control charts and control chart anatomy.2 X Analysis method. The data and what we need to do to prepare tt andproduce the X2 control chart.The second section of the tutorial is a stel>'bysteppresentaticn of the program used to prepare the data andgenerate the X2 control Chart. The DATA step and thevarious procedures used (SORT, SUMMARY,TRANSPOSE, FREQ, PLOT) are explained. In overview,the program: Prepares and manipulates the data to put tt in the
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Colored Candies and Base SAS:A Sweet Way to Prodl,lce ChiSquare Control ChartsPart 1: Tutorial 197KB PDF download
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