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A New Printing Machine Is Set or Calibrated to Print

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A new printing machine is set or calibrated to print 25 copies per minute. On each of four days, the printer's output is measured five times. The data will be used to construct a process control chart to monitor the printing process. The results of the printing process are in the following table. A new printing machine is set or calibrated to print 25 copies per minute. On each of four days, the printer's output is measured five times. The data will be used to construct a process control chart to monitor the printing process. The results of the printing process are in the following table.   What is the value for the lower control limit (LCL) of the range chart? What is the value for the lower control limit (LCL) of the range chart?


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