a) \(R_i^s=\frac{3R_i}{R_j}\)
b) \(R_i^s=\frac{R_i}{2R_j}\)
c) \(R_i^s=\frac{2R_i}{R_j}\)
d) \(R_i^s=\frac{R_i}{R_j}\)
Standardized R chart which uses control limits D3 and D4 has the value of \(R_i^s\) = _________
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Standardized R chart which uses control limits D3 and D4 has the value of \(R_i^s\) = _________
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