Dataset: sheetmetal.dat Source: K.D. Majeske and P.C. Hammett (2003). "Identifying Sources of Variation in Sheet Metal Stamping," The International Journal of Flexible Manufacturing Systems, Vol. 15, pp. 5-18. Description: Deviations from nominal design specification of 36 body side panels in automobiles. Six batches of side panes were selected at random, within of each, 2 groups of side panels were sampled, within each, 3 side panels were selected. Measurements are in 10ths of mm, above or below nominal position. Variables/Columns Batch 8 Group w/in Batch 16 Group (overall) 23-24 Rep w/in batch 32 /* Not used in analysis as a factor */ Deviation from nominal position (1/10 mm) 36-40 /* 6.2 ==> 0.62mm */