hard · GMAT Verbal
A luxury hotel chain noticed that guest satisfaction scores were 20% higher at locations that featured live piano music in the lobby compared to those that did not. To increase scores across the entire chain, the hotel plans to install pianos and hire musicians for all its locations.
Which of the following, if true, most calls into question the success of the hotel's plan?
- Overall guest satisfaction scores are influenced by many different factors, including room cleanliness, check-in speed, and the responsiveness of front-desk staff.
- The locations currently featuring live music are primarily historic properties in quiet areas, while the other locations are mostly modern business hotels in loud city centers.
- The hourly cost of hiring qualified professional pianists for evening lobby performances has risen by roughly 10% over just the last year.
- Some guests staying at the locations that already have pianos reported afterward that they barely noticed the music playing during their check-in process.
- Installing pianos and hiring resident musicians for every single location would end up costing the chain far more than the live-music locations currently spend on lobby decor.
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