Since a Sample Is a Subset of the Population, the Sample

question 91

Multiple Choice

Since a sample is a subset of the population, the sample mean

• A)is always smaller than the mean of the population
• B)is always larger than the mean of the population
• C)must be equal to the mean of the population
• D)can be larger, smaller, or equal to the mean of the population

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Definitions:

Violent Crime Rate

A statistical measure of the number of violent crimes reported per unit of population or given time period.

Matched Pairs

A study design where subjects are paired based on certain criteria, making them comparable, and then treated differently to examine effects.

Independent Samples

Two or more groups of samples that are collected from independent populations, and where the selection of a sample from one population does not influence the selection from another.

Significance Test

A statistical test used to determine if the observed differences between two or more groups are statistically significant.