Use the Given Degree of Confidence and Sample Data to Construct

question 5

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean $\mu$ . Assume that the population has a normal distribution. $n = 30 , \bar { x } = 84.6 , \mathrm {~s} = 10.5,90 \%$ confidence

• A) \(79.32 < \mu < 89.88\)
• B) \(80.68 < \mu < 88.52\)
• C) \(81.34 < \mu < 87.86\)
• D) \(81.36 < \mu < 87.84\)

---

Definitions:

Reflexive Decision System

A cognitive system that makes decisions automatically based on habit or instinct rather than conscious analysis.

Nucleus Accumbens

A region in the brain's basal forebrain rostral to the preoptic area of the hypothalamus, playing a central role in the reward circuit, motivation, pleasure, and reinforcement learning.

Apraxia

Inability to make voluntary movements in the absence of paralysis or other motor or sensory impairment, especially an inability to make proper use of an object.

Arm Movements

The action or process of moving the arm, which involves muscular and skeletal systems.