A manager wishes to build a control chart for a process. A total of five (05) samples are collected with six (06) 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, 4.81, 8.17,and 3.31 respectively. The lower and upper control limits of the R-chart are respectively

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Author:Amos Gilat
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A manager wishes to build a control chart for a process. A total of five (05) samples are collected with six (06) 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, 4.81, 8.17, and 3.31 respectively. The
lower and upper control limits of the R-chart are
respectively
O a. None is correct
O b. 1, 10.5
O c. 0,14.18
O d. 0, 15.25
O e. 0, 14.11
Transcribed Image Text:A manager wishes to build a control chart for a process. A total of five (05) samples are collected with six (06) 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, 4.81, 8.17, and 3.31 respectively. The lower and upper control limits of the R-chart are respectively O a. None is correct O b. 1, 10.5 O c. 0,14.18 O d. 0, 15.25 O e. 0, 14.11
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