In Testing the Difference Between Two Population Means, for Which

question 4

Multiple Choice

In testing the difference between two population means, for which the population variances are unknown and are not assumed to be equal, two independent samples of large sizes are drawn from the populations. Which of the following tests is appropriate?

• A)z-test.
• B)Pooled-variances t-test.
• C)Unequal variances t-test.
• D)Matched pairs t-test.

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Definitions:

Social Comparison Theory

The belief that a person's societal and personal value is self-assessed by measuring themselves against others whom they view as being on better or worse footing.

Festinger

A reference to Leon Festinger, a psychologist best known for Cognitive Dissonance Theory, which suggests that we have an inner drive to hold all our attitudes and beliefs in harmony and avoid disharmony.

Normative Social Processes

Social mechanisms that dictate acceptable behaviors and beliefs within a society, guiding individuals on how to act according to societal norms.

Social Setting

The physical or social context in which people engage in activities or interact with others, influencing behaviors and interactions.