A Contributor to the Change in the American Family Structure

question 70

Multiple Choice

A contributor to the change in the American family structure is:

• A) the increased population.
• B) our increased life expectancy.
• C) urbanization.
• D) higher infant mortality rate.

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Definitions:

Test Statistic

A value calculated from sample data used to evaluate the validity of a hypothesis in statistical tests.

Degrees of Freedom

Refers to the count of values in the final calculation of a statistic that are free to vary.

Student T-distribution

A probability distribution that is used for estimating population parameters when the sample size is small and the population variance is unknown.

Normal Distribution

A probability distribution that is symmetric about the mean, depicting that data near the mean are more frequent in occurrence than data far from the mean.