72. Based upon sales reports over a three-month period that indicate an increase in
profits for stores that sell products for the home and a decrease in profits for clothing
stores, the business manager of a department store concludes that consumers are
choosing to purchase home furnishings rather than clothing. On the basis of this
conclusion, the manager recommends a reduction in the size of the clothing department
and an increase in the size of the home-furnishings department. This recommendation is
problematic in two critical respects.
In the first place the authors conclusion that consumers are choosing to buy
products for their homes instead of clothing is based upon too small a sample. Data
gathered from a three-month period is insufficient to establish the conclusion drawn
from it. It is quite possible that the three-month period chosen is idiosyncratic and not
representative of entire years sales. If so, reducing the size of the clothing departments
and enlarging the home-furnishings departments may be a costly mistake.
In the second place, the data collected during the three month period may be
biased. The fact that the data reflects sales in local stores is cause for concern. It is
possible that the sales trend in a particular location is not representative of sales in other
regions. For example, sales of clothing in Florida during the winter months are likely to
be quite different from sales of clothing in Alaska during the same period.
In conclusion, this argument is not persuasive as it stands. A more convincing
argument must provide additional sales data, collected at different periods of the year
and at different locations, that substantiates the trend in question.
名词所有格的语法速记口诀
反身代词的用法
英语语法:双重所有格
元旦英语祝福短信
形容词和副词速记口诀
接动名词作宾语的动词速记口诀
英语语法:关系代词
一般过去时的语法知识要点
接不定式作宾语的动词速记口诀
英语语法:人称代词的用法
英语语法:不定冠词的用法
英语语法:冠词与形容词+名词结构
现在进行时语法知识要点
疑问代词的用法
相互代词的用法
过去将来时的语法知识
感叹句速记语法口诀
不定代词的用法
一般将来时语法应用知识
物主代词的用法
英语语法:反身代词
元旦前一天英语如何讲
过去进行时的语法知识
名词单数变复数规则语法速记口诀
other, the other, another, others, the others的区别
一般现在时的语法应用
宾语从句速记语法口诀
指示代词的用法
英语语法:疑问代词
一般将来时的语法知识
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |