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标题: GWD 4-20 [打印本页]
作者: aurorazhou 时间: 2005-6-14 06:57
标题: GWD 4-20
Q20:
Community activist: If Morganville wants to keep its central shopping district healthy, it should prevent the opening of a huge SaveAll discount department store on the outskirts of Morganville. Records from other small towns show that whenever SaveAll has opened a store outside the central shopping district of a small town, within five years the town has experienced the bankruptcies of more than a quarter of the stores in the shopping district.
The answer to which of the following would be most useful for evaluating the community activist’s reasoning?
- Have community activists in other towns successfully campaigned against the opening of a SaveAll store on the outskirts of their towns?
- Do a large percentage of the residents of Morganville currently do almost all of their shopping at stores in Morganville?
- In towns with healthy central shopping districts, what proportion of the stores in those districts suffer bankruptcy during a typical five-year period?
- What proportion of the employees at the SaveAll store on the outskirts of Morganville will be drawn from Morganville?
- Do newly opened SaveAll stores ever lose money during their first five years of operation?
Can anyone explain the correct answer? And why B is wrong?
作者: elite-william 时间: 2005-6-14 08:19
is the answer C?
if the proportion of the bankrupacy with healthy ones is a quarter or even more,the reasoning will be a fallacy.
作者: aurorazhou 时间: 2005-6-16 00:20
your answer is correct. But why???
作者: elite-william 时间: 2005-6-23 10:35
题目说如果它在商业中心以外的地方再开一家store的话,破产率会达到1/4。
C说1/4这个数即使在健康的商业中心是否也是如此。if yes,说明在商业中心以外的地方再开一家store毫无影响。if no,说明是有影响的。
总之是在evaluate 1/4 这个数是否是正常植。
作者: winrain 时间: 2009-7-29 10:23
up
作者: lenovoo 时间: 2010-3-13 21:18
Records of bankruptcy rate from other small towns may not consistent with those from small towns with healthy shopping district.
C helps to evaluate whether two situation are the same.
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