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 o observations regarding the thickness of fabric in measured in millimeters. In a particular hour, the sample means X-bar) are noted to be: 15646,199.62. 189.31, 10222, and11209 respectively. In the same sample, the corresponding ranges are: 11.97. 12.17. 13.94.11.86, and 1183 respectively. What are the lower and upper control limits for the X-bar chart? 02. 14355,165.47 O b. 146.01.157.87 OC 156.55.170.47 d. None is correct De 144.78.159.11 D 142.92.160.66

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