Statistical Quality Control Methods - Assignment Example

The control measures work out for the two boxes. Analyzing the R-chart it can be noted the first samples taken had a low range and were within the limit as compared with the last samples taken. Though, a few last sets, that is, the eleventh and twelfth boxes decrease its range.

The appropriate action to be taken to enhance the control measures should focus on the third box. The third box is the one that has the highest dispersion from the normal weight and thus increases the cost of production. Control measures implemented by the firm should be revised and emphasis on the last box is packed. Two actions can be taken to keep in check the weight of the boxes. The first action is to conduct an audit of the weighing equipment. The problem can be the programming setup of the equipment, which lose the count of weight for the third box because it does not exceed the limit for the first and second box. The next action is to change the packaging of the third box. The material used in manufacturing the box should be of relatively low weight so that the difference will be filled by the cereal (product). The range difference is solely a failure of the weighing equipment because it is not reasonable for calibrated equipment to exceed the range of product weight in a given set, for instance, a range of 0.2 ounces exceeds the upper limit by 100%. Therefore, my piece of advice to the Operations Manager is to contact a technician to either calibrate the weighing equipment or purchase another weighing equipment if the current one has become obsolete or inefficient.