When Predicting Y Given X , _________

question 87

Multiple Choice

When predicting Y given X , _________.

• A) the prediction is valid only within the range of X
• B) the variability of the Y values over the range of the X values should be the same
• C) the representativeness of the sample used to derive the regression line is an important consideration
• D) all of these

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Definitions:

Independent Samples T-Test

A statistical test used to compare the means of two independent groups in order to determine if there is a statistically significant difference between them.

Dependent Samples T-Test

A statistical test used to compare the means of two related groups.

Regression

A statistical method used to model and analyze relationships between variables.

Obtained Value

The actual value or result achieved in an experiment or study, typically used in statistical analysis to compare against theoretical values.