Data 95 87 81 154 98 129 75 141 77 94 116 169 137 98 78 87 86 172 136 75 105 83 82 85 97 78 88 153 85 75 79 78 74 221 84 89 119 87 80 80 90 162 102 100 98 92 95 77 86 73 116 66 66 75 116 63 64 60 73 71 58 60 155 64 64 90 132 60 65 69 82 63 63 71 76 102 63 65 57 83 67 70 62 78 71 75 76 108 67 105 100 64 83 64 71 89 61 77 68

Please note :The program is accurate within the following constraints β = β1 / β0 is within the range of 0.02 to 0.99 and from 1.05 to 50.0 arl when in control is within the range of 20 (probability of false positive=0.05 or 5%) to 1000 (probability of false positive=0.001 or 0.1%) Click button to run program using example data, or replace example data with real data and click button to tun. Measurement in control (β0) Measurement when out of control (β1) Averaged Run Length (ARL) Starting value for CUSUM as proportion of h

MacroPlot Code

CUSUM : Hawkins DM, Olwell DH (1997) Cumulative sum charts and charting for quality improvement. Springer-Verlag New York. ISBN 0-387-98365-1 p 47-74

Gan FF (1994) Design of Optimal Exponential CUSUM Charts. Journal of Quality Technology 26:2 p. 109-124. Program code in Fortran available at url = http://lib.stat.cmu.edu/jqt/26-2

Gan FF and Choi KP (1994) Computing Average Run Lengths for Exponential CUSUM Schemes. Journal of Quality Technology 26:2 p. 134-143