Approximately How Many Americans of Italian Descent Were in the United

question 29

Multiple Choice

Approximately how many Americans of Italian descent were in the United States as of 2013?​

• A) ​7 million
• B) 10 million​
• C) 17 million​
• D) 22 million​
• E) 27 million​

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Definitions:

Populations

In statistics, populations refer to the entire group of individuals or items of interest from which a statistical sample is drawn for analysis.

Z-test

A statistical analysis designed to identify variations between the means of two distinct populations, provided that the variances are predetermined and the size of the sample is substantial.

T-test

A statistical test used to compare the means of two groups or to compare a sample mean to a known value when variances are known or assumed to be equal.

Population Variances

Population variances measure the variability or spread of a population's data points from its mean, indicating how much the population data values differ from each other.