A Residual Analysis Results in the Finding That There Are

question 4

Multiple Choice

A residual analysis results in the finding that there are many residuals clustered closely around 0, but there is also some predicted values that have very large (>0) residuals and some that have very small (<0) residuals.This may indicate that ________________________ .

• A)there are groups that should be analyzed separately
• B)a linear model is not appropriate for this data
• C)there is a positive autocorrelation.
• D)a transformation is necessary.
• E)the regression model is providing good estimates.

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Definitions:

Axons

Long, slender projections of nerve cells (neurons) that transmit electrical impulses away from the neuron's cell body to other neurons, muscles, or glands.

Myelin

A fatty substance that surrounds and insulates the axons of some neurons, enhancing the speed and efficiency of electrical signal transmission.

Receptor Sites

Specific locations on the surface of a cell or within a cell that are sensitive to certain chemicals, hormones, or neurotransmitters.

Neurotransmitters

Chemicals that transmit signals across a synapse from one neuron to another in the brain and nervous system.