tailieunhanh - kaplan GMAT 800 Frist part 2

Tham khảo tài liệu 'kaplan gmat 800 frist part 2', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Generated by Foxit PDF Creator Foxit Software http For evaluation only. 2. SURVEYS AND STUDIES This category is intimately related to the previous one. More often than not the surveys studies and occasional experiments that show up in Critical Reasoning questions are backed by numbers and percentages and we can almost consider these two types as one big category. However it s worth breaking them up because 1 surveys and studies have their own predictable patterns on the GMAT and 2 they don t always involve numbers or percentages and sometimes when they do as is the case in question 2 here the numerical info is secondary to the mechanisms of the study itself. You ll be seeing quite a few surveys and studies in the pages that follow. An 800 test taker approaches a Critical Reasoning survey study or experiment with skepticism knowing full well that it might be testing an understanding of how these presentations of information can go awry. 2. A social worker surveyed 200 women who recently had given birth to their first child. Half of these women had chosen to give birth in a hospital or obstetric clinic the other half had chosen to give birth at home under the care of certified midwives. Of the 100 births that occurred at home only five had presented any substantial complications whereas 17 of the hospital births had required extra attention because of complications during delivery. The social worker concluded from this survey that the home is actually a safer environment in which to give birth than is a hospital or clinic. Which of the following if true most seriously calls the social worker s conclusion above into question A All of the women in the study who were diagnosed as having a high possibility of delivery complications elected to give birth in a hospital. B Many obstetricians discourage their patients from giving birth in theirown homes. C Women who give birth in their own homes tend to experience less stress during labor and delivery .

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