In Recent Years,the Duration of Residency for Unauthorized Immigrants to the United

question 39

Multiple Choice

In recent years,the duration of residency for unauthorized immigrants to the United States has been

• A) decreasing.
• B) increasing.
• C) relatively constant.
• D) has averaged only 2 years.
• E) unknown since the immigrants are unauthorized.

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Definitions:

Grand Mean

The mean or average of several group means, which gives an overall measure of the central tendency across all the groups considered together.

Treatments

Interventions or conditions that researchers apply to experimental units or subjects to observe their effect on outcomes.

Level of Significance

A threshold of probability set before testing hypotheses, below which the null hypothesis is rejected.

Treatments

Specific conditions applied to the participants or subjects in an experimental study.