argument194[冲刺小组]第四次作业

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In this argument, the author tries to convince us that people who are left-handed would be well advised to engage in business, whereas people who are right-handed should imitate the business practices managed by left-handers. However, the argument fails due to several primary flaws in logic. First, the author provides no reliable and particular information about the study. Furthermore, there are two fallacious cause and effect relationships assumed in the argument.
  
To begin with, the main support that the writer relies on is a recent study conducted by people who are business executives. However, the author provides not enough statistics concerning the sample size of 1000 prominent business executives, which may be far from sufficient and fails to represent the whole numbers of  business executives. How many total numbers of executives in business there are and what respectively percent of left-handed and right-handed business executives in the samples are not mentioned in the argument.  It is possible that only 1 percent of the total numbers was observed. Neither does he offer the selection procedure. It is likely that those business executives observed were not selected at random, so that most people who are right-handers have been excluded. For these reasons, the argument is not well support by the study.

Second, It is possible that the study itself was designed defectively, leading the result of this study being cast doubt on. The author used the photographs of 1000 prominent business executives as the major statistics, disregarding that those photos may not represent the real fact of how many executives actually use left hand in general there are. Perhaps, some business executives were asked to use left hand when they are taking photos. Therefore, without ruling out this possibility, the writer can not convince me that the result of the study is reliable.

Furthermore, Even if the study is entirely reliable, the writer make an arbitrarily assumption that the people who are left-handers would be more likely to succeed than the right-handed. However, the researchers only state "the percentage of people in general population who are left-handed is almost twice the percentage of people in the general population who are left-handed." This does not means that left-handed have more chances to reach success. It is likely that 79 percent of right-handed ones are prominent business executives, maybe we can make an opposite conclusion that right-handed ones are more easily to be successful in business.

Finally, similarly, the writer unfairly assumes that the right-handed people would be well advised to imitate the business practices exhibited by left-handers. It is possible that imitating left-handers in business may lead to a bad result for right-handers.

To strengthen the argument and conclusion, the writer should present more specific and reliable information and statistics about the study and give the appropriate evidences to support these assumptions.