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What is the ratio of the UCL to LCL of the same GCC R chart?

What is the ratio of the UCL to LCL of the same GCC R chart? Correct Answer UCL/LCL=D4/D3

We know that the values of the control limits of the R chart for the GCC are, UCL=D4 R ;LCL=D3 R So their ratio will be, UCL/LCL=D4/D3.

Related Questions

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