PrepTest 81, Section 3, Question 15
Columnist: Many car manufacturers trumpet their cars' fuel economy under normal driving conditions. For all three of the cars I have owned, I have been unable to get even close to the fuel economy that manufacturers advertise for cars of those makes. So manufacturers probably inflate those numbers.
Columnist: Many car manufacturers trumpet their cars' fuel economy under normal driving conditions. For all three of the cars I have owned, I have been unable to get even close to the fuel economy that manufacturers advertise for cars of those makes. So manufacturers probably inflate those numbers.
Columnist: Many car manufacturers trumpet their cars' fuel economy under normal driving conditions. For all three of the cars I have owned, I have been unable to get even close to the fuel economy that manufacturers advertise for cars of those makes. So manufacturers probably inflate those numbers.
Columnist: Many car manufacturers trumpet their cars' fuel economy under normal driving conditions. For all three of the cars I have owned, I have been unable to get even close to the fuel economy that manufacturers advertise for cars of those makes. So manufacturers probably inflate those numbers.
The reasoning in the columnist's argument is most vulnerable to criticism on the grounds that the argument
draws a conclusion on the basis of a sample that is too small
presumes, without providing justification, that driving conditions are the same in every geographical region
overlooks the possibility that the source of a cited claim may be biased and hence unreliable
presumes, without providing justification, that car manufacturers knowingly market cars that fail to meet minimum fuel efficiency standards
uses the term "fuel economy" in two different senses
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