The Standard Error of the Regression

question 40

Multiple Choice

The standard error of the regression:

• A)is based on squared deviations from the regression line.
• B)may assume negative values if b₁ < 0.
• C)is in squared units of the dependent variable.
• D)may be cut in half to get an approximate 95 percent prediction interval.

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Definitions:

Total Mean

The overall average of a set of values or scores.

Total Mean

Refers to the average value of a set of numbers, calculated by summing all the data points and dividing by the total number of points.

F-Ratio

The F-ratio is a statistic used to compare the variance between groups with the variance within groups in analysis of variance (ANOVA) testing.

Factor A

A variable manipulated by the researcher in an experiment to observe its effect on the dependent variable; often used in the context of factorial designs.