medium · Gre Verbal

Which of the following, if true, would most STRENGTHEN the marketing director's conclusion?

1. In a controlled trial, the same stores alternated slow- and fast-tempo music on randomly chosen days, and on slow-tempo days customers reliably spent more per visit.
2. The stores that played slow-tempo music were, on average, located in noticeably wealthier neighborhoods than the stores that played fast-tempo music instead.
3. Customers who were surveyed afterward said they generally found slow-tempo background music considerably more pleasant and relaxing to shop along to than fast-tempo music.
4. The grocery chain's single fastest-growing regional competitor also plays a steady stream of recorded background music throughout the aisles of its own stores.
5. Playing slow-tempo background music costs the grocery chain no more in annual music-licensing fees each year than playing an equal amount of fast-tempo music would.

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