In a Cluster Sample

question 54

Multiple Choice

In a cluster sample,

• A) everyone has the same chance of being selected for the sample.
• B) a variable is the basis on which a group of people are randomly selected.
• C) a sample is chosen from a selected group of people.
• D) characteristics of the total population are represented.

Interpret results from experiments comparing two sets of data.

Apply the correct statistical tests for comparing population variances.

Identify the assumptions underlying variance comparison tests.

Calculate confidence intervals and interpret their meaning in the context of the data.

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Definitions:

Labor Force

The total number of people who are of working age, being able and willing to work, including those who are employed and those who are seeking employment.

Part-Time Work

Employment with fewer hours per week than a full-time job, often without the same benefits as full-time employment.

Necessities

Basic needs that are essential for human survival and well-being, including food, water, shelter, and clothing.

Interlocking Directorates

The practice of sharing board members among different companies, which can lead to a concentration of power and influence.