Use the Given Degree of Confidence and Sample Data to Construct

question 18

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. $n = 30 , \bar { x } = 84.6 , s = 10.5,90 \%$ confidence

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

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Definitions:

Contingency Planning

The process of preparing strategies to deal with unexpected events or emergencies that might affect an organization's operations.

Operational Plans

Detailed action plans that outline how a company’s strategic objectives will be achieved in the short term, specifying activities, resources, and timelines.

Mergers and Acquisitions

Business strategies involving the consolidation (merger) of companies or the purchase (acquisition) of one company by another to strengthen market position.

Company Growth

The increase in the size, output, or market share of a corporation over time.