Which of the Following Is Not an Assumption of the Wilcoxon

question 1

Multiple Choice

Which of the following is not an assumption of the Wilcoxon rank-sum test?

• A)The data are ratio,interval,or ordinal in scale-all of which must be converted to ranked (ordinal)data before conducting the test.
• B)The underlying distribution is not normal.
• C)The observations are independent.
• D)There is homogeneity of variance.

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Definitions:

Separation Anxiety

A disorder in children characterized by excessive fear or anxiety about separation from home or attachment figures.

Attachment Figure

An individual who provides a child with emotional and physical security, often a parent or primary caregiver.

Social Smile

A smile that occurs in response to a human voice or face.

Human Voice

The sound produced by humans using the vocal folds for talking, singing, laughing, crying, screaming, etc.