A retail company operates two fulfillment centers, North and South. The centers use different order-picking systems, and the North center has a substantially lower rate of picking errors. The systems differ in several features, including how they assign routes through the warehouse and how they display item information. A company analyst concludes that the North center’s lower error rate is primarily due to its order-picking system rather than to differences in the experience or skill of the employees at the two centers. Select Strengthen for the statement that, if true, most strengthens the analyst’s conclusion, and select Weaken for the statement that, if true, most weakens the analyst’s conclusion. Make only two selections, one in each column.

Events A, B, and C have the following probabilities of future : Two-part Analysis (TPA)

Strengthen	Weaken
		The North center processes a larger number of orders per day than the South center.
		Employees at the North center have, on average, worked in warehouse fulfillment for several years longer than employees at the South center.
		Employees transferred from the South center to the North center generally made fewer errors than they had made before the transfer.
		The North center handles a somewhat larger proportion of orders containing multiple items than the South center.
		In a trial in which the same group of employees used each system for comparable orders, they made substantially fewer picking errors when using the North center’s system.