The Following Data Shows Annual Income, in Thousands of Dollars

question 12

Essay

The following data shows annual income, in thousands of dollars, categorized according to the two factors of gender and level of education. Assume that incomes are not affected by an interaction between gender and level of education, and test the null hypothesis that level of education has no effect on income. Use a 0.05 significance level.
$\begin{array} { l c c } & \text { Female } & \text { Male } \\\text { High school } & 23,27,24,26 & 25,26,22,24 \\\text { College } & 28,36,31,33 & 35,32,39,28 \\\text { Advanced degree } & 41,38,43,49 & 35,50,47,44\end{array}$

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Definitions:

Behavioral Diagnosis

A process in psychology used to determine the specific behavior patterns and mental processes underlying an individual's difficulties.

Concurrent Validity

The degree to which the measures gathered from one assessment tool agree with the measures gathered from other assessment techniques.

Predictive Validity

refers to the extent to which a score on a scale or test predicts future performance on a related task.

Standardization

The process of establishing consistency in the way data is collected, procedures are conducted, or products are manufactured, often to ensure quality and comparability.