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Finding of a survey of Systems magazine subscribers: Thirty

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Manager
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Joined: 07 Oct 2005
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Finding of a survey of Systems magazine subscribers: Thirty [#permalink] New post 19 Nov 2007, 11:33
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D
E

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Finding of a survey of Systems magazine subscribers: Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five. Finding of a survey of advertisers in Systems magazine: Most of the merchandise orders placed in response to advertisements in Systems last year were placed by people under
age thirty-five.

For both of the findings to be accurate, which of the following must be true?

A. More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five.

B. Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.

C. Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five.

D. Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over.

E. Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine.

Please provide your explanation.
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--gregspirited

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Re: CR - Magazine Survey [#permalink] New post 19 Nov 2007, 11:49
gregspirited wrote:
Finding of a survey of Systems magazine subscribers: Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five. Finding of a survey of advertisers in Systems magazine: Most of the merchandise orders placed in response to advertisements in Systems last year were placed by people under
age thirty-five.

For both of the findings to be accurate, which of the following must be true?

A. More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five.

B. Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.

C. Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five.

D. Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over.

E. Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine.

Please provide your explanation.


My answer is E. Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five. Many more orders could have been placed by people who were under 35 (responsing to the ad) but not necessarily subscribers to the magazine.

WHen the advertisers claim that most of the merchandise was ordered by people less than 35, that included both subscribers and non-subscribers. The non-subscribers must be greater than subscribers for this to be valid.
Manager
Manager
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Joined: 07 Oct 2005
Posts: 139
Location: Boston,MA
Followers: 1

Kudos [?]: 19 [0], given: 0

 [#permalink] New post 19 Nov 2007, 11:51
You got it right. Thanks.
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--gregspirited

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Re: CR - Magazine Survey [#permalink] New post 19 Nov 2007, 13:30
gregspirited wrote:
Finding of a survey of Systems magazine subscribers: Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five. Finding of a survey of advertisers in Systems magazine: Most of the merchandise orders placed in response to advertisements in Systems last year were placed by people under
age thirty-five.

For both of the findings to be accurate, which of the following must be true?

A. More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five.

B. Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.

C. Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five.

D. Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over.

E. Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine.

Please provide your explanation.


Def E. but it took me forever to digest this argument.
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Joined: 28 Dec 2005
Posts: 1593
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Kudos [?]: 73 [0], given: 2

 [#permalink] New post 19 Nov 2007, 20:24
I think a lot of the others are just out of scope ... so ended up with E
  [#permalink] 19 Nov 2007, 20:24
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