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Industrial Statistics with Minitab by Xavier Tort-Martorell Llabres, Lluis Marco Almagro, Pere Grima Cintas

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3.1 File ‘DETERGENT’

Consider again the file DETERGENT.MTW of Chapter 1, containing data of a company that produces washing powder for washing machines. Through an inspection, carried out during the last quarter of the year 2009, the company detected very frequent stops in the two available production lines. The production process disposes of an automatic register system which records, every time there is a stop, the position of the stop (riveter, belt, feeding, filling, sealing, palletization) and the line where it occurs (two available lines). The Columns C3 and C4 of file DETERGENT.MTW contain the position of the stops and the production line where the stops occur, respectively.

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