In a Large Sample Mann-Whitney U Test in Which the Sample

question 23

Multiple Choice

In a large sample Mann-Whitney U test in which the sample size from the first population is 30 and the sample size from the second population is 40, which of the following is the expected U value if the null hypothesis of equal median values is true?

• A) 1,200
• B) 70
• C) 35
• D) 600

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Definitions:

Mercury

A chemical element with the symbol Hg that is a heavy, silvery d-block element; known for its use in thermometers and fluorescent lamps but toxic to humans and the environment if not handled properly.

Tympanic

Pertaining to the tympanum or eardrum, often used to describe temperature measurement methods via the ear.

Gastric Residual Volume (GRV)

The amount of fluid remaining in the stomach at a given time, used as an indicator of gastric emptying rate.

Tube Feeding

A method of providing nutrition to individuals through a tube placed in the stomach or small intestine, often used when oral intake is not possible.