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# According to government official involved in overseeing

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VP
Joined: 30 Oct 2003
Posts: 1406
Location: NewJersey USA
According to government official involved in overseeing  [#permalink]

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07 Jan 2004, 13:14
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Difficulty:

55% (hard)

Question Stats:

64% (02:10) correct 36% (02:33) wrong based on 81 sessions

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18. According to government official involved in overseeing airplane safety during the last year, over 75 percent of the voice-recorder tapes taken from small airplanes involved in relatively minor accidents record the whistling of the pilot during the fifteen minutes immediately preceding the accident. Even such minor accidents pose some safety risk. Therefore, if passengers hear the pilot start to whistle they should take safety precautions, whether instructed by the pilot to do so or not.

The argument is most vulnerable to criticism on the grounds that it

(A) accepts the reliability of the cited statistics on the authority of an unidentified government official

(B) ignores the fact that in nearly one quarter of these accidents following the recommendation would not have improved passenger' safety

(C) does not indicate the criteria by which an accident is classified as "relatively minor"

(D) provides no information about the percentage of all small airplane flights during which the pilot whistles at some time during that flight

(E) fails to specify the percentage of all small airplane flights that involve relatively minor accidents
VP
Joined: 30 Oct 2003
Posts: 1406
Location: NewJersey USA
Re: According to government official involved in overseeing  [#permalink]

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07 Jan 2004, 13:26
How do you justify your answer. It is impossible to findout when pilot wistles during the flight unless recording takesplace during the entire flight duration. I dont think it shows the flaw in the argument. The flaw apparent if it can be shown that accidents are caused by someother thing than wistling.
Are you thinking that if we one can show that pilots did wistle during some part of the flight journey and that didnt cause accidents then the flaw in the investigators reasoning becomes apparent?
Manager
Joined: 29 Aug 2003
Posts: 179
Location: MI
Re: According to government official involved in overseeing  [#permalink]

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07 Jan 2004, 13:31
anandnk wrote:
How do you justify your answer. It is impossible to findout when pilot wistles during the flight unless recording takesplace during the entire flight duration. I dont think it shows the flaw in the argument. The flaw apparent if it can be shown that accidents are caused by someother thing than wistling.
Are you thinking that if we one can show that pilots did wistle during some part of the flight journey and that didnt cause accidents then the flaw in the investigators reasoning becomes apparent?

I did not consider the fact - how will one find out the percentage of time the pilots whistle. But, consider this -
If the pilots whistle in almost 100% of time in all the flights, how will the passengers distinguish between a risk and no risk situation ? See what I am trying to say...
VP
Joined: 30 Oct 2003
Posts: 1406
Location: NewJersey USA
Re: According to government official involved in overseeing  [#permalink]

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08 Jan 2004, 07:26
D is correct.

Unbelievable scenario. What would the passenegers do if pilots whistle on on average 30% of the time, or 60% of the time. It does not matter how often they whistle. Passengers will go for cover. I feel it is a stupid question. It is hard to judge for the passengers when to take cover no matter what the percentage is. So they will take the default action. It would good if the answer were rephrased as "passengers cannot decide when to take the cover whether or not it is kown how often the pilots whistle"
It is way far away from foraml logic question that talks about unbelievable scenario ( like life on mars for example ) and also way far away from reasonable plausible argument.
Intern
Joined: 05 Aug 2014
Posts: 8
Re: According to government official involved in overseeing  [#permalink]

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14 Apr 2016, 05:30
Answer D seems to be logical one.
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Re: According to government official involved in overseeing  [#permalink]

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26 Nov 2019, 08:32
OA added and bumping for further discussion
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Manager
Joined: 31 Jan 2019
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According to government official involved in overseeing  [#permalink]

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30 Nov 2019, 13:07
1
OA added and bumping for further discussion

Hi everyone,

We are given that 75% of the planes involved in small crashes involve the captain whistling.
The conclusion is a suggestion: whenever you hear the captain whistling, take safe precautions!

Pre-thinking

Falsification scenario: what if in the majority of flights captains whistle?
Assumption: An insignificant number of captains whistle in flights not involved in small crashes.

If you like numbers:

Let's assume 100 small crashes are reported ------>in 75 of such crashes the captain whistles
Let's assume 1 million flights do not involve any crash. The majority of the captain of such flights whistle.

Such scenario falsifies the conclusion.

Option D is the correct option because it spots the flaw presented above
According to government official involved in overseeing   [#permalink] 30 Nov 2019, 13:07
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