ASQ
CSSBB · Question #66
A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.Find the control limits for a median chart.
The correct answer is A. 12.52 and 12.72. See the full explanation below for the reasoning.
Control Phase
Question
A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.Find the control limits for a median chart.
Options
- A12.52 and 12.72
- B12.54 and 12.70
- C0.02 and 0.33
- Dnone of the above
How the community answered
(50 responses)- A74% (37)
- B4% (2)
- C16% (8)
- D6% (3)
Topics
#median chart#control limits#SPC#control chart constants
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