A manager wishes to build a control chart for a process. A total of five (05) samples are collected with four (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, 7.73, 2.89, 7.56, and 3.49 respectively. The lower and upper control limits of the x-bar chart are. respectively

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A manager wishes to build a control chart for a process. A total of five (05) samples are collected with four (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, 7.73, 2.89, 7.56, and 3.49 respectively. The lower and upper control limits
of the x-bar chart are.
respectively
Select one:
a. 18.55, 13.47
b. 11.47, 16.55
c. 13.40, 19.72
d. 11.45, 20.67
Transcribed Image Text:A manager wishes to build a control chart for a process. A total of five (05) samples are collected with four (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, 7.73, 2.89, 7.56, and 3.49 respectively. The lower and upper control limits of the x-bar chart are. respectively Select one: a. 18.55, 13.47 b. 11.47, 16.55 c. 13.40, 19.72 d. 11.45, 20.67
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