Question: Five samples have been picked from a lot (with each sample containing five pieces). The range of the measurements is found as 0.14, 0.17, 0.21,
Five samples have been picked from a lot (with each sample containing five pieces). The range of the measurements is found as 0.14, 0.17, 0.21, 0.14 and 0.08. For a confidence interval of 99.73%, calculate upper and lower control limits of the range chart.
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