1.

When the EWMA charts are in operation for quite a long period, what will be the value of the UCL of the chart?

A. UCL=\(μ_0+Lσ\sqrt{\left\{\frac{λ}{2-λ}\right\}}\)
B. UCL=\(μ_0-3Lσ\sqrt{\left\{\frac{λ}{2-λ}\right\}}\)
C. UCL=\(μ_0+2Lσ\sqrt{\left\{\frac{λ}{2-λ}\right\}}\)
D. UCL=\(μ_0-Lσ\sqrt{\left\{\frac{λ}{2-λ}\right\}}\)
Answer» B. UCL=\(μ_0-3Lσ\sqrt{\left\{\frac{λ}{2-λ}\right\}}\)


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