Federal States

question 23

Multiple Choice

Federal states:

• A) make up the majority of the world's states
• B) have a disproportionately large percentage of the world's population
• C) are found in North America and western Europe and nowhere else
• D) are rarely democratic
• E) often have no real central government at all

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Definitions:

Effect Size

A quantitative measure of the magnitude of the experimental effect from a study, indicating the size of the difference between groups.

T-statistic

A statistic calculated from a sample of data used to conduct a t-test, which assesses whether there is a significant difference between the means of two datasets.

Type II Error

An error that occurs when a statistical test fails to reject a false null hypothesis, indicating a missed opportunity to detect an actual effect or difference.

Type I Error

The incorrect rejection of a true null hypothesis, also known as a "false positive".