A Random Sample of 20 Items Is Selected from a Population

question 32

Multiple Choice

A random sample of 20 items is selected from a population. When computing a confidence interval for the population mean,what number of degrees of freedom should be used to determine the appropriate t-value?

• A)20
• B)19
• C)21
• D)25

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Definitions:

Social Stratification

The hierarchical arrangement of individuals in society based on wealth, power, race, education, etc.

Hierarchical Interactions

Interactions that occur within structured levels of authority or power, often seen in organizations, where communication and decision-making follow a top-down or bottom-up approach.

Breaching Experiment

A social experiment that seeks to examine people's reactions to violations of commonly accepted social rules or norms.

Dramaturgical Experiment

A research method in social psychology that examines how individuals' self-presentation varies in different social situations, using the metaphor of the theater.