argu17

17The 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."
1.调查错误，80%是概数，没有说服力。有可能调查的人很多，但是respondents很少。

2.EZ的的卡车不一定会全部用来收集垃圾，卡车的数量和收集垃圾的质量没有关系。无法提供积极的证据

3.虽然EZ每周会有2次的收集垃圾，但是有可能WG的垃圾数量每周只需要一次就够了，所以这时候采用ABC比较好，因为费用比较低。