Super City Discount Department Store is open 24 hours a day.The number of cashiers need in each four-hour period of a day is listed below. 
If cashiers work for eight consecutive hours,how many should be scheduled to begin working in each period in order to minimize the number of cashiers needed?
Definitions:
Fishbone Diagram
A visual tool used for identifying and organizing the potential causes of a problem, typically resembling the shape of a fishbone.
Total Quality Management
A management approach focused on continuous improvements in quality, aiming to reduce waste and increase customer satisfaction.
Manufacturing Processes
The methods and techniques used to transform raw materials into finished products through machinery and labor.
Continuous Improvement
An ongoing effort to enhance products, services, or processes through incremental and breakthrough improvements.
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