Final answer:
The correct statements about batch size are: (b) Smaller batches lead to reduced system variability and (c) Larger batches increase system lead time.
Step-by-step explanation:
In examining the relationship between batch size and systemic efficiency, two statements can be posited based on the premise that smaller batches move through a system with greater speed and less variability. According to principles of lean manufacturing and process optimization:
- (b) Smaller batches lead to reduced system variability. This is because smaller batches allow for quicker identification and resolution of issues, and adjustments can be made more rapidly. There is also less inventory to manage, which simplifies the system.
- (c) Larger batches increase system lead time. Bigger batches take longer to manufacture, move, and process, which can introduce delays. Increased handling and processing time can lead to a longer overall system lead time.
Therefore, statements b and c are the true options amongst given choices. Contrary to the incorrect options, larger batches do not necessarily result in faster system throughput due to potential inefficiencies in processing large quantities, and smaller batches do not slow down the system but instead enhance the flow and reduce potential backups.