Use the Given Degree of Confidence and Sample Data to Construct

question 138

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.
- $\mathrm { n } = 30 , \overline { \mathrm { x } } = 84.6 , \mathrm {~s} = 10.5,90 \%$ confidence

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

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Definitions:

Occipital Area

The region at the back of the brain which is primarily responsible for visual processing.

Hypothalamus

A small region at the base of the brain crucial for hormone production and regulation, influencing body temperature, hunger, mood, and more.

Motivated Behavior

Actions that are initiated or directed by a desire or need, highlighting the drive toward achieving a specific goal or satisfying a physiological or psychological requirement.

Cerebellum

The cerebellum is a major structure of the brain involved in motor control, coordination, precision, and accurate timing, playing a significant role in fine-tuning movements and balance.