In process industry during a daily production run, 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, 20.00, and 16.64 respectively. The corresponding ranges are; 9.90, 7.73, 4.41, 7.56, and 3.49 respectively. The lower and upper control limits of the x-bar chart are respectively O a. 11.44, 20.66 O b. 11.29, 20.65 O c. None is correct Od. 11.47, 21.14 e. 11.47, 16.55

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In process industry during a daily production run, 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, 20.00, and 16.64
respectively. The corresponding ranges are; 9.90, 7.73, 4.41, 7.56, and 3.49 respectively. The lower and upper
control limits of the x-bar chart are
respectively
O a. 11.44, 20.66
O b. 11.29, 20.65
C.
None is correct
Od.
11.47, 21.14
e.
11.47, 16.55
Transcribed Image Text:In process industry during a daily production run, 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, 20.00, and 16.64 respectively. The corresponding ranges are; 9.90, 7.73, 4.41, 7.56, and 3.49 respectively. The lower and upper control limits of the x-bar chart are respectively O a. 11.44, 20.66 O b. 11.29, 20.65 C. None is correct Od. 11.47, 21.14 e. 11.47, 16.55
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