When the Error Variance Is Nonconstant,it Is Common to See

question 39

Multiple Choice

When the error variance is nonconstant,it is common to see the variation increases as the explanatory variable increases (you will see a "fan shape" in the scatterplot) .There are two ways you can deal with this phenomenon.These are

• A)the weighted least squares and a logarithmic transformation.
• B)the partial F and a logarithmic transformation.
• C)the weighted least squares and the partial F.
• D)stepwise regression and the partial F.

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Definitions:

Long-Term Effects

The lasting consequences of actions, events, or policies, which may become apparent only with time and can be either positive or negative.

Community Service

Voluntary work intended to help people in a particular area, often mandated by courts as part of sentencing.

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A personality trait characterized by the consistency of one's emotions and a low tendency toward emotional fluctuations.