easy · GRE Verbal

A warehouse installed clearer aisle labels, and picking errors fell. It credits the labels.

The answer to which question would be most useful for evaluating the conclusion?

  1. How much did the warehouse pay for the new labels?
  2. Which supervisor approved the label replacement?
  3. Did the warehouse change how it recorded picking errors?
  4. Were the new labels described in a staff announcement?
  5. How long had the warehouse used the previous labels?

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