singh7
Why E is wrong?
Please explain the correct answer
Hello,
singh7. I would be happy to lend a hand and provide a full analysis of the question for you and the larger community.
Quote:
A recent state survey of human resources found that the age to which secretarial school graduates are expected to live is four years in excess of the age to which other graduates of high school are expected to live. One possible conclusion is that secretarial school. attendance is beneficial to one's health.
To evaluate the conclusion above, it would be most important to know the answer to which of the following questions?
The passage is straightforward, but you still have to be careful to take the information that is presented, not to get creative. Note that in the first line, the comparison in longevity is between
secretarial school graduates and
other graduates of high school, so
everyone has graduated from high school. The conclusion is not definitive, but is presented more as a working hypothesis: perhaps
secretarial school attendance is beneficial to one's health. If our task is to evaluate this conclusion, we should be focusing on the twin pillars of secretarial school and health benefits.
Quote:
(A) Have the
average age of new high school graduates
and the average age of new secretarial school graduates
recently increased?
Notice that this answer choice centers on the
average age of both parties, and whether these averages have
recently increased is also beside the point. We want to get to the bottom of whether attending secretarial school confers some special benefit, and knowing at what age someone attends school will not provide any insight into why that person may live longer than someone else who does not attend that type of school.
Quote:
(B) Do
some secretarial school graduates
have college degrees?
Watch out for
some. Such a vague qualifying word often falls flat in CR answer choices, since it could be used to refer to just two of something. Ask yourself, if two secretarial school graduates also earned college degrees, would that make any difference to the argument? What about five? You should be able to appreciate that
college degrees add a third type of educational credential that has nothing to do with the two on which the argument is based.
Quote:
(C) Given that women have a greater life expectancy than men, what are the
relative proportions of men and women among high school and secretarial school graduates?
If women tend to live longer than men
in general, and if women happened to comprise a larger proportion of
secretarial school graduates than they did among high school graduates, then secretarial school might not have much, if anything, to do with the findings. Some other body of graduates that was made up largely of women might follow the same tendency. On the other hand, if women made up the same proportion of graduates among both groups, or, worse yet, a lower proportion of secretarial school graduates, then the working hypothesis would need to be changed, and some other factor would need to be proposed to explain the results. Any way you look at it, this consideration is pertinent to evaluating the argument.
Quote:
(D) Given that women have a greater life expectancy than men,
what proportion of all women attend secretarial school?
Right idea in the beginning, but wrong execution in the end. This is only comparing women to other women, and regardless of the number we could conjure up—e.g., five percent—we would be no closer than a
some to gaining insight into the findings of the survey. Whether ten percent or fifty percent of women
attend secretarial school, the fact remains that this group would be expected, according to the passage, to live longer than other high school graduates.
Quote:
(E) Has
the proportion of high school graduates who attend secretarial school increased in recent years?
The conclusion is not based on the longevity of people now versus in the past, so, as we saw above in answer choice (A), such a
recent increase is irrelevant to the matter at hand. Consider, too, that
anybody who goes on after high school to
attend secretarial school and subsequently graduate will fall into the secretarial school graduate pool. We already knew from the passage that all secretarial school graduates also graduated from high school. This new
proportion does nothing to explain the gap between those who do or do not go on to graduate from secretarial school. Finally, you cannot assume a
yes answer to this question. What if the proportion is identical? How would that knowledge help explain the survey results? Or, what if the proportion
decreased? It is hard to see how this answer choice helps to evaluate the conclusion that graduates of secretarial school live longer than other graduates of high school.
Perhaps the question and answer choices make more sense now. Good luck with your studies.
- Andrew