Conetracting control charts, for cigarettes production, in sulaimani cigarettes factory

The quality control in manufacturing processes , is a very important statistical work , to improve the quality production . or at least remaining it within a such acceptance region with respect to some restriction that the process contains . Cigarettes , is one of productions which is seriously damages health , with a great risk on humans being life , as well as it causes environment an that on national income . so it is necessary to keep the quality of this product to be in control , especially with the impure rate that the cigarette contains , to reduce damages , and improving quality. ARIMA residuals charts is a special control chart , used to detect , and specify the quality behaviors in data time correlated processes , if they are in or out of control . This kind of charts is better than others ( Rchart ) , it is helpful for specifying adjusting the quality limits during production , and observing production process