The mayor says that a new bus line increased shopping downtown, citing a 12 percent rise in sales at stores near the line.
Which one of the following, if true, most strengthens the mayor's claim?
Answer and explanation
Correct answer: C. Sales at stores far from the new line rose by less than 2 percent
- Step 1: Stores near the line did far better than those far from it. Step 2. This supports the line as the cause. Answer: stores far from the line rose by less than 2 percent. Why not the others: these do not compare stores.
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