The Best Way to See If Heteroscedasticity Is Present Is

question 67

Multiple Choice

The best way to see if heteroscedasticity is present is to

• A) plot the residuals against the dependent variables and examine at them
• B) plot the residuals against each of the independent variables and examine them
• C) use the Kolmogorov-Smirnov or Shapiro-Wilk test supplied in most computer statistical programs
• D) apply a logarithmic transformation

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Definitions:

Free Radicals

Highly reactive molecules with unpaired electrons, capable of causing cellular damage and contributing to disease processes.

Electrons

Subatomic particles with a negative charge, orbiting the nucleus of an atom and involved in chemical reactions and electricity.

Temperature

An indicator of how hot or cold an object or substance is, compared to a baseline value.

Molecular Motion

The random movement of molecules in matter due to their kinetic energy; this motion increases with temperature.