Choose "true" or "false" as applicable for each of the following items as they pertain to similarities and differences between the weighted average method and the FIFO method. The FIFO method must be used when a business has more than one production department. The weighted average method must be used when a business has more than one production department. Differences between the two methods impact ONLY how conversion costs are assigned to inventory units. These differences do NOT impact how direct material costs are assigned to inventory units. Equivalent full units do NOT need to be calculated under the weighted average method. Equivalent full units do NOT need to be calculated under the FIFO method