Answer:
1000 units
Step-by-step explanation:
Average demand over the next 4 quarters = (4000 + 3000 + 4000 + 5000) / 4
Average demand over the next 4 quarters = 16000 / 4
Average demand over the next 4 quarters = 4000
That is, as per the Level plan, 4000 units shall be produced in each of the next 4 quarters.
Quarter 1
Beginning Inventory = 0
Production = 4000
Demand = 4000
Ending Inventory = (Beginning Inventory + Production) - Demand
Ending Inventory = (0 + 4000) - 4000
Ending Inventory = 4000 - 4000
Ending Inventory = 0 units
Quarter 2
Beginning Inventory = 0
Production = 4000
Demand = 3000
Ending Inventory = (Beginning Inventory + Production) - Demand
Ending Inventory = (0 + 4000) - 3000
Ending Inventory = 4000 - 3000
Ending Inventory = 1000 units