easy · GMAT Verbal
A survey of patrons at a luxury restaurant found that 90% rated their dining experience as 'excellent.' On this basis, the owner concluded that the restaurant provides an excellent experience to the vast majority of people in the city.
The owner's reasoning is most vulnerable to criticism on the grounds that it:
- Generalizes from a self-selected group of patrons to the city's general population, which they do not represent.
- Fails to weigh the possibility that the restaurant's food quality might decline at some future point.
- Ignores the firsthand opinions of the many employees who actually work inside the restaurant every single day.
- Assumes, without any real warrant, that a rating of 'excellent' is logically equivalent to a rating of 'perfect'.
- Presumes, with no supporting basis whatsoever, that each and every surveyed patron answered the questionnaire honestly.
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