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发表于 2008-1-19 18:09:24
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TOPIC: ARGUMENT17 - The following appeared in a letter to the editor of the Walnut Grove town newspaper.
"Walnut Grove's town council has advocated switching from EZ Disposal (which has had the contract for trash collection services in Walnut Grove for the past ten years) to ABC Waste, because EZ recently raised its monthly fee from $2,000 to $2,500 a month, whereas ABC's fee is still $2,000. But the town council is mistaken; we should continue using EZ. EZ collects trash twice a week, while ABC collects only once. Moreover, EZ-which, like ABC, currently has a fleet of 20 trucks-has ordered additional trucks. Finally, EZ provides exceptional service: 80 percent of respondents to last year's town survey agreed that they were 'satisfied' with EZ's performance."
The editor concludes that the town council should also employ EZ to collect trash. To support it, the editor provides much evidence that EZ collect trash twice a week but ABC collects only once. What is more, EZ has 20 trucks and provides some exceptional service. And then, the editor cites a survey that 80 percent of respondents to agree with EZ's performance. However, the argument suffers from many reasoning problems.
Firstly, the editor fails to assume that EZ collecting trash twice a week is better than ABC doing once a week. Because people more likely concern about working quality but not work quantity. It is perhaps that EZ do not do the work so clean that it has done the work twice a week to keep clean. But ABC just doing it once a week is enough. Without comparing the working effect, the editor could not draw a conclusion that EZ is better than ABC.
Secondly, the editor is based on an incomplete contrast, because we do not know how many trucks do ABC have and whether ABC does provide exceptional service. It is possible that there are more trucks in the ABC than EZ. It is also possible that more services are provided by ABC than EZ. Without providing the information to contrast, the argument is unwarranted.
Thirdly, the survey which the editor cites suffers several statistical problems because we do not know the study sample are sufficient in size and representative of the over all group of people whose trash EZ collects. Even though the respondents are representative, survey are also not reasonable for tendentious respondents who are more likely to participate in the survey and respond the survey content. Even though the survey's respondent are not tendentious, it do not indicate that EZ's performance is better than ABC for respondent just answering that they are satisfied with EZ's performance. Perhaps they also satisfied with ABC’s performance.
To sum up, the argument is not convincing for insufficient evidence and incomplete contrast. To support it, the editor should provide more evidence that collecting trash twice a week is better than doing once a week and 20 trucks will benefit for the city. To better assess the argument I also need more information about the details of survey’s respondents.
还是请大家仔细检查我的语法错误,谢谢! |
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