Always good to see some healthy disagreement on these!
Let's start by being super-clear about the exact conclusion: "the average management professional has stronger quantitative skills than the average healthcare professional."
Great. How did the author arrive at that conclusion?
- We know that "successful management of financial projects requires strong quantitative skills."
- We are also told that "the average healthcare professional is less skilled at managing financial projects than the average management professional who does not work in a healthcare field". How do we explain this observation?
- The conclusion offers one possible explanation, but maybe there is another reason why the management professionals are more skilled at managing financial projects.
We are asked to select a statement that, if true, casts the most serious doubt on the conclusion, so let's take a look at the choices:
(A) Just because healthcare professionals and management professionals take about the same number of quant classes, does not necessarily mean that both groups have comparable quant skills. Perhaps one group took classes that were, on average, more advanced, or perhaps, on average, one group did very well in those classes and the other group did not. Taking the same number of quant classes
might help explain why two groups have comparable quant skills, but this information does not cast serious doubt on the conclusion. (A) can be eliminated.
(B) If management professionals are trained in project management but healthcare professionals are not, that probably explains why management professionals are better at managing projects, including financial projects. Choice (B) provides an alternative to the explanation stated in the conclusion, and, thus, casts serious doubt on the conclusion. Let's keep choice (B).
(C) If the average management professional has completed a higher level of mathematics than the average healthcare professional, we would expect management professionals to have stronger quantitative skills. This statement
supports the conclusion rather than
casting doubt on the conclusion, so (C) can be eliminated.
(D) Choice (D) might explain why
project managers are better at managing financial projects than
doctors, but this statement only gives us information about one type of professional within each group. We still do not know if management professionals, on average, have more free time to dedicate to financial projects than most healthcare professionals. This evidence is not strong enough to cast serious doubt on the conclusion, so (D) can be eliminated.
(E) Just because doctors, nurses, and pharmacists use quantitative skills on a daily basis does not necessarily mean that their quantitative skills are
stronger than those of a management professional. We also don't know which group--healthcare professionals or management professionals--uses
more quantitative skills on a daily basis. Furthermore, the group using those skills less often could still have stronger quantitative skills than the other group. Choice (E) does not cast serious doubt on the conclusion, so (E) can be eliminated.
Choice (B) is the best answer.
Option B does present an alternate reason, but not sure how it weakens the conclusion. Can you please explain.
The conclusion is - Avg. management professionals have better quant skills than avg. healthcare workers. My point is that even with this alternate reason, the conclusion is still same - be it through training - they still have better quant skills.
Ideally, there should be an option which weakens the conclusion or shows that avg. management professionals do not have better quant skills.