Question: In a fabric manufacturing factory, the quality control process using control charts from SPC. In an hour there are a total of 5 samples are

In a fabric manufacturing factory, the quality
In a fabric manufacturing factory, the quality control process using control charts from SPC. In an hour there are a total of 5 samples are taken each having 5 observations regarding the thickness of fabric in measured in millimeters. In a particular hour, the sample means (X-bar) are noted to be: 156.46, 199.62, 189.31, 102.22, and112.09 respectively. In the same sample, the corresponding ranges are: 11.97, 12.17 13.94, 11.86, and 11.83 respectively. What are the lower and upper control limits for the chart? a. 0,26.07 b. 0.29.17 Oc. None is correct d. 0,30.07 e. 0.28.17 f. 0.25.12

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