Question: A manager wishes to build a control chart for a process. A total of five (05) samples are collected with five (05) Observations within each

A manager wishes to build a control chart for a
A manager wishes to build a control chart for a process. A total of five (05) samples are collected with five (05) Observations within each sample. The sample means (X-bar) are; 15.36,14.61,16.36,20.28, and 15.77 respectively. Also, the corresponding ranges are; 10.79, 8.37 2.81,8.17, and 3.31 respectively. The lower and upper control limits of the R-chart are respectively Select one: O a. None is correct O b. O, 15.25 O c. 1, 10.5 O d. 0,14.12 O e. 0,13.32

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