Abstract:
The objective of this researeh is to study the approximation methods. The Average Run
Length (ARL) of Cumulative Sum (CUSUM) control chart by Integral Equations (IE) method by appoximation with the Trapezoidal and Gauss Quadrature rules when observations are from
Weibull distribution, Furtheremore, this IE method can be found the optimal parameter values
when given a magnitude of changes of parameter /) 0.01, 0.03, 0.05, 0.07, 0.09 and 0.1 and r
is given to be a constant. The performance of control chart is measure