To Use the Wilcoxon Rank Sum Test as a Test

question 3

Multiple Choice

To use the Wilcoxon rank sum test as a test for location, you must assume that

• A) the obtained data are either ranks or numerical measurements that will be converted to combined ranks.
• B) both samples are randomly and independently drawn from their respective populations.
• C) both underlying populations from which the samples were drawn are equivalent in shape and dispersion.
• D) All the above.

---

Definitions:

Visual Acuity

The clarity or sharpness of vision, measured by the ability to discern letters or numbers at a given distance according to a fixed standard.

Newborns

Newborns refer to infants in the very first weeks of life, characterized by rapid physical development and the commencement of basic physiological processes.

Organized Visual Scanning

A systematic method of visually examining an environment or image by effectively moving one's gaze across the area to identify important details.