A Sample of 250 People Resulted in a Confidence Interval

question 145

Multiple Choice

A sample of 250 people resulted in a confidence interval estimate for the proportion of people who believe that the federal government's proposed tax increase is justified is between 0.14 and 0.20. Based on this information, what was the confidence level used in this estimation?

• A) Approximately 1.59
• B) 95 percent
• C) Approximately 79 percent
• D) Can't be determined without knowing σ.

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Definitions:

Evidence-Based Management

The systematic use of empirical data and scientific findings to inform managerial decision-making and organizational practices.

Human Relations Movement

A critique of classical management and bureaucracy that advocated management styles that were more participative and oriented toward employee needs.

Bureaucracy

Max Weber’s ideal type of organization that included a strict chain of command, detailed rules, high specialization, centralized power, and selection and promotion based on technical competence.

Social Resources

refer to the assets and supports a person acquires through relationships and social networks, which can include emotional support, information, and material aid.