Families Are Embedded in a Class Hierarchy That Is "Pulling

question 20

True/False

Families are embedded in a class hierarchy that is "pulling apart" to shrink the middle class while more families join the ranks of the rich or the poor.

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Definitions:

Margin of Error

A measure of the accuracy of a public opinion poll, representing the extent to which the sample results might differ from those of the entire population.

Confidence

In statistics, it refers to the degree of certainty or probability that a calculated interval contains the true parameter value.

Normal Distribution

A bell-shaped frequency distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

T Distribution

A type of probability distribution that is symmetric and bell-shaped, used in hypothesis testing for small sample sizes or unknown variances.