Consider the Following Scenario as You Answer These Questions

question 15

Multiple Choice

Consider the following scenario as you answer these questions.
Nala wants to determine if providing awards for science fair winners increases or decreases participation by average students. She thinks that by promoting science as a competition some children may decide not to participate. To address this question, Nala assigns schools in her district to two types, awarding or non-awarding schools and compares the participation rate of students in her two groups.
-Given Nala's study, what is one extraneous variable she has considered?

• A) School location
• B) Student achievement
• C) School type
• D) Participation rate

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Definitions:

Confidence Interval

A breadth of values, extracted from sample-based statistics, considered likely to enfold the value of an unexplored population parameter.

Resting Heart Rate

The number of heartbeats per minute while an individual is at rest, indicating their basic level of cardiac activity.

Confidence Interval

A span of numbers extracted from sampled information, which is expected to encompass the true value of an unidentified parameter within the population, associated with a specified confidence level.

Cholesterol Level

The measure of cholesterol in the blood, important for assessing cardiovascular health and risk of heart disease.