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1. |
What is the expression for the two sided cusum ARL? |
A. | ( frac{1}{ARL}= frac{1}{2ARL^-}+ frac{1}{2ARL^+} ) |
B. | ( frac{1}{ARL}= frac{1}{ARL^-} frac{1}{ARL^+} ) |
C. | ( frac{1}{ARL}= frac{1}{2ARL^-}- frac{1}{2ARL^+} ) |
D. | ( frac{1}{ARL}= frac{1}{ARL^-}+ frac{1}{ARL^+} ) |
Answer» E. | |