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Question

Difficulty: EasyIdentifying Premises and Evidence

A municipal study in Westlake indicates that installing high-intensity LED streetlights along commercial corridors reduced nighttime pedestrian accidents by 30 percent over a twelve-month period. Consequently, city council members plan to install identical LED lighting across all residential neighborhoods in Westlake to achieve a similar reduction in accidents. Which of the following statements functions as the primary premise supporting the city council members' plan?

  1. Installing high-intensity LED streetlights along commercial corridors was followed by a 30 percent drop in nighttime pedestrian accidents over twelve months.Answer
  2. B
    City council members plan to install identical LED lighting across all residential neighborhoods in Westlake.
  3. C
    Westlake is a municipality that recently conducted a safety evaluation of its public infrastructure.
  4. D
    High-intensity LED streetlights are less expensive to maintain over long periods than traditional lighting systems.
  5. E
    Residential nighttime accidents in Westlake are caused entirely by inadequate street illumination.

Answer

The statement citing the 30 percent reduction in nighttime pedestrian accidents following the installation of high-intensity LED streetlights along commercial corridors serves as the primary supporting premise.
The correct answer correctly identifies the concrete factual finding of the municipal study—specifically, the 30 percent decrease in nighttime pedestrian accidents along commercial corridors after LED installation. In Critical Reasoning structure, this empirical finding serves as the primary premise supporting the council's conclusion to extend the project to residential areas.

Step-by-Step Solution

1
Identify the main conclusion of the argument.
The main conclusion is the city council's plan to install identical LED lighting across residential neighborhoods to reduce accidents.
Determining the conclusion helps distinguish what claim is being defended from the evidence used to defend it.
2
Locate the explicit evidence or data offered in support of this conclusion.
The factual finding from the Westlake study showing a 30 percent reduction in accidents over twelve months provides the empirical basis for the plan.
Premises are explicit statements of fact or evidence offered to justify the conclusion.

Key Concept

Identifying Premises and Evidence
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Topics

Identifying Premises and Evidence

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