In Testing the Difference Between Two Population Means for Which

question 90

Multiple Choice

In testing the difference between two population means for which the population variances are unknown and not assumed to be equal,two independent samples 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)None of these choices.

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Definitions:

Gesellschaft

A term used in sociology to describe a society characterized by weak interpersonal relationships, with social bonds based more on self-interest and less on familial or community ties.

Gemeinschaft

A term used in sociology to describe community bonds and social relations based on personal and family ties, often contrasted with Gesellschaft (society).

Modernization

The process through which societies transform from traditional rural agrarian economies to secular, urban, and industrialized systems.

Sex Ratio

Indicates the proportion of males to females in a population.