When the subgroup size is 4 for any process samples, what will be the value of the R chart LCL of the GCC?

When the subgroup size is 4 for any process samples, what will be the value of the R chart LCL of the GCC? Correct Answer 0

We know that for n=4, D3 has the value of zero. Putting it into the equation of the LCL of the R chart for the GCC, gives us, LCL=0.

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