Provide an Appropriate Response $98 \%$ Confidence Interval for the True Mean

question 72

Multiple Choice

Provide an appropriate response.
-The grade point averages for 10 randomly selected junior college students are listed below. Assume the grade point averages are normally distributed. Find a $98 \%$ confidence interval for the true mean.
$\begin{array} { l l l l l l l l l l } 2.0 & 3.2 & 1.8 & 2.9 & 0.9 & 4.0 & 3.3 & 2.9 & 3.6 & 0.8 \end{array}$

• A) \(( 1.55,3.53 )\)
• B) \(( 0.67,1.81 )\)
• C) \(( 2.12,3.14 )\)
• D) \(( 3.11,4.35 )\)

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Definitions:

Abstract Reasoning

The ability to analyze information, detect patterns and relationships, and solve problems on a complex level beyond concrete facts.

Verbal Fluency

The ability to produce a rapid flow of words under constraints, typically used to assess language and executive functions in cognitive testing.

Spatial Memory

The branch of memory reserved for recording the environment and spatial orientation.

Concrete Criteria

Specific, clear, and measurable standards used to evaluate or assess something.