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Since a marketing campaign began for the public transportation service

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Intern
Joined: 16 Aug 2014
Posts: 49
Since a marketing campaign began for the public transportation service  [#permalink]

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03 Aug 2018, 07:17
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Difficulty:

5% (low)

Question Stats:

91% (01:28) correct 9% (02:14) wrong based on 101 sessions

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Since a marketing campaign began for the public transportation service from downtown to the newly built baseball stadium, automobile traffic in the area of the stadium on days of baseball games has decreased twenty-five percent. Simultaneously, there has been an equivalent rise in the number of persons riding public buses to the games. Without a doubt, the marketing campaign has been successful in convincing people to leave their cars at home and ride the bus to baseball games.

Which of the following, if true, casts the most serious doubt on the conclusion drawn above?

A. Since the marketing campaign began, the cost of bus fares to the stadium has risen dramatically.
B. As part of the marketing campaign, high-profile occupants of luxury suites at the stadium have been seen riding the buses to games.
C. Since the marketing campaign began, the cost of parking a car in the lots surrounding the stadium has risen to an amount equivalent to thirty times the old cost of a bus ticket to the stadium, which itself has been reduced by half during the same period.
D. The number of bus routes available to the stadium is exactly the same both before and after the marketing campaign.
E. Surveys show that the customer satisfaction of bus riders to the stadium has not increased since the start of the marketing campaign.

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Joined: 18 Jun 2018
Posts: 262
Re: Since a marketing campaign began for the public transportation service  [#permalink]

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10 Aug 2018, 00:16
mayursurya wrote:
Since a marketing campaign began for the public transportation service from downtown to the newly built baseball stadium, automobile traffic in the area of the stadium on days of baseball games has decreased twenty-five percent. Simultaneously, there has been an equivalent rise in the number of persons riding public buses to the games. Without a doubt, the marketing campaign has been successful in convincing people to leave their cars at home and ride the bus to baseball games.

Which of the following, if true, casts the most serious doubt on the conclusion drawn above?

A. Since the marketing campaign began, the cost of bus fares to the stadium has risen dramatically.
B. As part of the marketing campaign, high-profile occupants of luxury suites at the stadium have been seen riding the buses to games.
C. Since the marketing campaign began, the cost of parking a car in the lots surrounding the stadium has risen to an amount equivalent to thirty times the old cost of a bus ticket to the stadium, which itself has been reduced by half during the same period.
D. The number of bus routes available to the stadium is exactly the same both before and after the marketing campaign.
E. Surveys show that the customer satisfaction of bus riders to the stadium has not increased since the start of the marketing campaign.

OA: C

Conclusion: Without a doubt, the marketing campaign has been successful in convincing people to leave their cars at home and ride the bus to baseball games.

Option which gives an alternate explanation for the increase in the use of public transport will weaken the conclusion

Quote:
C. Since the marketing campaign began, the cost of parking a car in the lots surrounding the stadium has risen to an amount equivalent to thirty times the old cost of a bus ticket to the stadium, which itself has been reduced by half during the same period.

Option C does that
Re: Since a marketing campaign began for the public transportation service   [#permalink] 10 Aug 2018, 00:16
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