Suppose the Mean Earnings of Two Groups Differ

question 16

Multiple Choice

Suppose the mean earnings of two groups differ. Which of the following would be the logical conclusion?

• A) The group with the lowest earnings must be the victim of employment discrimination.
• B) The group with the lowest earnings must be less productive.
• C) The group with the highest earnings is more highly motivated and materialistic.
• D) Without consideration of preferences and productivity factors, differences in unadjusted mean earnings do not necessarily reflect employment discrimination.

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Definitions:

Multiple Coefficient

Often refers to the coefficient of determination in multiple regression that measures the proportion of the variance in the dependent variable predictable from the independent variables.

SST

In the context of statistical analysis, particularly ANOVA, this can refer to the Total Sum of Squares, which measures the total variation in the data. NO.

Categorical Independent Variable

An independent variable with categorical data.

Dependent Variable

A variable in an experiment or study whose changes depend on the manipulation of the independent variables.