In this argument, the author first cited a study that found ab association between the amount of sleep the executive needs and the success of their firms. On the basis of this evidence, the author suggested that business firms should only hire those who sleep less than 6 hours per night. Close scrutiny of this evidence, however, revealed that they lend little tenable support for the author’s recommendations. To make the reasoning of this argument more justified, some questions should be considered.

To begin with, as it is cited in the study, there is a sample with 300 males and females advertising executives. This can raise an important question about the representativeness of the sample, could this group of people represent the whole population? In the argument, the author gave a little information about the sample, such as the advertising field they are working on, and the amount of workload they have on each day. For example, if all of these 300 people are from top-notch advertising firms, their sleep hours and the achievement could be negatively related. This result cannot be applied to those who are from adverting companies with small or medium scales. To evaluate these flaws, it is necessary to review the demographic information of this study…….

In addition, the author unfairly assumes that the fewer sleep hour the executives have, the more profit margin and the firms can earn. However, there is more sufficient evidence to substantiate the inevitable relationship between the number of sleep hours and the success of the firm. Thus, the robustness of the association should be doubted and questions can come such as what others factors can be to cause this relationship? The possible factors can be the leadership and the social network of executives. For example, if the executive knows a lot of celebrities or has a very decisive leadership towards their staff, their firms may be more likely to succeed. The profitability and growth are related to other factors such as the demand for products or services and suitable governmental policies fostering the business. In short, the author could not hastily conclude before taking the above factors into account.

Lastly, the authors also recommended other firms to follow the steps to hire people sleeping less than 6 hours. This assumption can raise an important question that whether the result of the study can be generated and apply to other companies with different siltation. Are those companies comparable with this special case? More specially, every company has different conditions, such as administration systems routines, the numbers, and ability of staff. Thus, like the second point that I mentioned, the divergence should be greatly taken into account.

In conclusion, this argument is undoubtedly invalid, as it seems, for lack of compelling evidence and sound reasoning. To better evaluate the author’s conclusion, it is necessary to provide more convincing and unbiased evidence, reason more frigidly and rule out other possible explanations

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