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CR: Heart attack

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Director
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CR: Heart attack [#permalink] New post 07 Jun 2005, 16:04
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A
B
C
D
E

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8. Of 2,500 people who survived a first heart attack, those who did not smoke had their first heart attack at a median age of 62. However, of those 2,500, people who smoked two packs of cigarettes a day had their first heart attack at a median age of 51. On the basis of this information, it can be concluded that nonsmokers tend to have a first heart attack eleven years later than do people who smoke two packs of cigarettes a day.

The conclusion is incorrectly drawn from the information given because this information does not include

(A) the relative severity of heart attacks suffered by smo
kers and nonsmokers
(B) the nature of the different medical treatments that smokers and nonsmokers received after they had survived their first heart attack
(C) how many of the 2,500 people studied suffered a second heart attack
(D) the earliest age at which a person who smoked two packs a day had his or her first heart attack
(E) data on people who did not survive a first heart attack
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 [#permalink] New post 07 Jun 2005, 18:41
E?
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 [#permalink] New post 07 Jun 2005, 19:01
I'll go with D. If the person is 50 yrs old before he/she started smoking 2 packs a day, then the data is not accurate.
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 [#permalink] New post 07 Jun 2005, 19:32
I will go with "E"
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 [#permalink] New post 07 Jun 2005, 19:33
I will go with "E"
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 [#permalink] New post 07 Jun 2005, 20:31
go with E. if there were more people died for any type of smokers, the conclusions would be invalid.
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 [#permalink] New post 08 Jun 2005, 01:26
E for sure

we compare ages of smokers and non-smokers when they suffered their first heart attacks, and not whether they survived or not.
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Answer [#permalink] New post 08 Jun 2005, 04:41
The OA is E.
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 [#permalink] New post 08 Jun 2005, 08:40
ywilfred wrote:
I'll go with D. If the person is 50 yrs old before he/she started smoking 2 packs a day, then the data is not accurate.


I think the median statistics already obtained covers this possibility, Wilfred.

I'm on (E).
  [#permalink] 08 Jun 2005, 08:40
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