A manufacturing company produces plastic bottles for the dairy industry. Some of the bottles are rejected because of poor quality. Causes of poor-quality bottles include faulty plastic, incorrect labeling, discoloration, incorrect thickness, broken handle, and others. The following data for 500 plastic bottles that were rejected include the problems and the frequency of the problems.
Use these data to construct a Pareto chart. Discuss the implications of the chart.
Problem Number
Discoloration .......... 32
Thickness ............ 117
Broken handle ........... 86
Fault in plastic ........... 221
Labeling ............ 44