Question: 2 points Arange control chart (R-chart) was developed with LC - and UCL - 2.90. Similarly, an X-bar chart was developed with LCL - 15.0

2 points Arange control chart (R-chart) was developed with LC - and UCL - 2.90. Similarly, an X-bar chart was developed with LCL - 15.0 and UCL - 24.0. Five (5) additional samples of size 4 were taken from a process. The means and ranges of the five samples are given in the table below. Is the process in control Range of each sample Mean of each sample 1.75 29.5 2.42 22.3 2.75 17.4 2.04 20.1 2.80 18.9 a. Both the process range and the process mean are in control. b. Both the process range and the process mean are out of control Oc. The process range is in control, but the process mean is out of control. d. We do not have enough information to determine if the process is in control or not c. A warning signal should be issued

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