Gunta Hans took 30 samples of 15 units from a process. The average sample range for the
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Gunta Hans took 30 samples of 15 units from a process. The average sample range for the 30 samples is 1.025 kg and the average mean is 19.872 kg. Draw control charts for the process.
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X o overall mean of the sample means 19872 kg Ro overall mean of the sample ranges 1025 kg ...View the full answer
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