medium · GMAT Verbal
A regional bank observed that customers who use its mobile app have 40% higher savings balances than those who only use physical branches. The bank's management concluded that the app's convenient tracking features encourage customers to save more money.
Which of the following, if true, most weakens the management's conclusion?
- Customers who rely only on physical branches tend to make fewer but considerably larger individual deposits than the bank's typical app users do.
- Surveys consistently show that customers who use the mobile app are highly satisfied with the bank's overall customer service.
- The bank's mobile app is primarily used by younger, tech-savvy professionals who generally have higher incomes and higher savings rates.
- The bank recently updated its mobile app to add a convenient new feature that lets users deposit their paper checks remotely.
- Physical branch usage across the region has declined by roughly 15% in the three years since the mobile app first launched, surveys indicate.
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