Question: A manager wishes to build a control chart for a process. A total of five (os) samples are collected with five (04) observations within each

A manager wishes to build a control chart for a process. A total of five (os) samples are collected with five (04) observations within each sample. The sample means (X-bar) are; 14.09, 13.94, 16.86,18.77, and 16.64 respectively. Also, the corresponding ranges are: 9.90, 773,6.89,7.56, and 3.49 respectively. The lower and upper control limits of the R-chart are respectively Select one: O a. 1,10.5 O b. 0,16.22 O C.0,13-32 a O d. 0,12.32

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