ASQ
CSSBB · Question #138
Find the upper control limit for a range chart if n = 4 and the average range is 2.282.
The correct answer is C. 5.208. See the full explanation below for the reasoning.
Control Phase
Question
Find the upper control limit for a range chart if n = 4 and the average range is 2.282.
Options
- A2.282
- B4.564
- C5.208
- D3.423
How the community answered
(32 responses)- A13% (4)
- B3% (1)
- C81% (26)
- D3% (1)
Topics
#range chart#UCL#control limits#statistical process control
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