Suppose a Research Uses the Mann-Whitney Test to Determine If

question 54

Multiple Choice

Suppose a research uses the Mann-Whitney test to determine if there is a difference in the volume of text messages sent by a high school student living in a rural area versus an urban area during the month of December.Eight rural high school students and 9 urban high school students were included in the study.If, among all 17, the sum of the ranks W₁ produced from the rural high school students is 72, the U₁ statistic is __________

• A)29
• B)45
• C)90
• D)36
• E)43

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Definitions:

Bran Diet

A diet high in bran fiber, often recommended to improve digestive health and prevent constipation.

Nasogastric Tube

A flexible tube that is inserted through the nose and extends to the stomach for feeding or removing stomach contents.

Swallows

The act of causing or allowing something (typically food or liquid) to pass from the mouth down through the esophagus to the stomach.

Head Flexed

A position where the head is tilted or bent forward.