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 172.11.219.58, 208.24. 112.44 and 123.30 Trespectively in the same sample, the corresponding ranges are: 13.17. 13.38, 15.34, 13.04, and 13.02 respectively What are the lower and upper control limits for the chart 29.17,0 b 29.670 . 28.670 O d 31 470 e 0.30.98 o 1 None is correct IN

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