The Following Data Were Collected to Determine Whether or Not

question 8

Multiple Choice

The following data were collected to determine whether or not the retirement age is the same for people in different professions.

How many degrees of freedom are there for the chi-square test statistic?

• A) 12
• B) 25
• C) 16
• D) 9
• E) 20

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Definitions:

Levels

Distinct values or categories that an experimental or categorical variable can take in research or statistical analysis.

Observations

Data or measurements collected during a study or research.

Bacteria Count

The number of bacterial cells in a given volume or weight of a sample.

Sum Of Squares

A statistical measure used in the context of ANOVA, regression, and other models, representing the total variation attributed to particular explanatory variables.