- Fri Jan 21, 2011 12:00 am
#63997
Complete Question Explanation
Justify the Conclusion—SN. The correct answer choice is (A)
This stimulus provides a series of conditional statements, listed below with diagrams:
If a wig has any handmade components, it is more expensive than one with none:
Handmade components more expensive than none
If a wig is made to measure, it ranges from medium priced to expensive:
Made to measure medium- to high-priced
Handmade foundations are never found on wigs that don’t use human hair. In other words, handmade
foundations are found only on wigs that do use human hair.
Handmade foundations wigs with human hair
Any wig that contains human hair should be dry-cleaned:
Wig with human hair should be dry-cleaned
Based on the above premises, the author draws the following conclusion:
All made-to-measure wigs should be dry-cleaned:
Made to measure should be dry-cleaned
Based on the information provided in the stimulus, all we really know about made-to-measure wigs
is that they are medium- to high- priced. The Justify question stem requires that we somehow tie
in the rogue element, “should be dry-cleaned.” The correct answer choice will provide a premise
which, when added to those provided in the stimulus, allows the author to conclude that made to
measure wigs should be dry-cleaned.
Answer choice (A): This is the correct answer choice. This answer provides that if a wig is
medium to high-priced, it has a handmade foundation:
medium- to high- priced handmade
And, the stimulus says that handmade foundations can only be found in wigs with human hair (in
other words, handmade foundations always have human hair):
medium to high handmade human hair
The author also provides that human-hair wigs should all be dry-cleaned:
medium to high handmade human hair dry-cleaned
...And, according to the stimulus, made-to-measure wigs are always medium- to high- priced:
made to measure medium to high handmade human hair dry-cleaned
As reflected in the diagram once we link the relevant conditions, this choice justifies the author’s
conclusion that all made-to-measure wigs should be dry-cleaned:
made to measure dry-cleaned
Answer choice (B): This choice provides the following conditional statement:
Handmade foundation more expensive than non-hand-made
Since this choice does not allow us to link the rogue element “should be dry-cleaned,” it does not
justify the argument in the stimulus.
Answer choice (C): This answer can be diagrammed as follows:
Has handmade components should be dry-cleaned
This choice might be appealing at first, because it does involve the needed element “should be drycleaned.”
However, the stimulus provides no link between a wig having hand-made components and
being made-to-measure, so this choice does not justify the author’s conclusion.
Answer choice (D): The conditional statement provided by this answer choice can be diagrammed as
follows:
Handmade foundation medium-priced or higher
Based on the information in the stimulus we already knew that wigs with handmade foundations are
more expensive than those without; this choice expands somewhat on that information, providing
that such wigs are always medium-priced or higher. Since this choice fails to link the condition
“made to measure” with the condition “should be dry-cleaned,” it cannot be the correct answer
choice to this Justify question.
Answer choice (E): This choice provides that if a wig should be dry-cleaned, it has a foundation that
is handmade:
Should be dry-cleaned foundation that is handmade
Justify the Conclusion—SN. The correct answer choice is (A)
This stimulus provides a series of conditional statements, listed below with diagrams:
If a wig has any handmade components, it is more expensive than one with none:
Handmade components more expensive than none
If a wig is made to measure, it ranges from medium priced to expensive:
Made to measure medium- to high-priced
Handmade foundations are never found on wigs that don’t use human hair. In other words, handmade
foundations are found only on wigs that do use human hair.
Handmade foundations wigs with human hair
Any wig that contains human hair should be dry-cleaned:
Wig with human hair should be dry-cleaned
Based on the above premises, the author draws the following conclusion:
All made-to-measure wigs should be dry-cleaned:
Made to measure should be dry-cleaned
Based on the information provided in the stimulus, all we really know about made-to-measure wigs
is that they are medium- to high- priced. The Justify question stem requires that we somehow tie
in the rogue element, “should be dry-cleaned.” The correct answer choice will provide a premise
which, when added to those provided in the stimulus, allows the author to conclude that made to
measure wigs should be dry-cleaned.
Answer choice (A): This is the correct answer choice. This answer provides that if a wig is
medium to high-priced, it has a handmade foundation:
medium- to high- priced handmade
And, the stimulus says that handmade foundations can only be found in wigs with human hair (in
other words, handmade foundations always have human hair):
medium to high handmade human hair
The author also provides that human-hair wigs should all be dry-cleaned:
medium to high handmade human hair dry-cleaned
...And, according to the stimulus, made-to-measure wigs are always medium- to high- priced:
made to measure medium to high handmade human hair dry-cleaned
As reflected in the diagram once we link the relevant conditions, this choice justifies the author’s
conclusion that all made-to-measure wigs should be dry-cleaned:
made to measure dry-cleaned
Answer choice (B): This choice provides the following conditional statement:
Handmade foundation more expensive than non-hand-made
Since this choice does not allow us to link the rogue element “should be dry-cleaned,” it does not
justify the argument in the stimulus.
Answer choice (C): This answer can be diagrammed as follows:
Has handmade components should be dry-cleaned
This choice might be appealing at first, because it does involve the needed element “should be drycleaned.”
However, the stimulus provides no link between a wig having hand-made components and
being made-to-measure, so this choice does not justify the author’s conclusion.
Answer choice (D): The conditional statement provided by this answer choice can be diagrammed as
follows:
Handmade foundation medium-priced or higher
Based on the information in the stimulus we already knew that wigs with handmade foundations are
more expensive than those without; this choice expands somewhat on that information, providing
that such wigs are always medium-priced or higher. Since this choice fails to link the condition
“made to measure” with the condition “should be dry-cleaned,” it cannot be the correct answer
choice to this Justify question.
Answer choice (E): This choice provides that if a wig should be dry-cleaned, it has a foundation that
is handmade:
Should be dry-cleaned foundation that is handmade