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

question 90

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 W₂ produced from the urban high school is 88,the U test statistic is _____________

• A) 29
• B) 45
• C) 90
• D) 43
• E) 20

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Definitions:

Irritability

A state of increased sensitivity or susceptibility to being annoyed, easily upset, or angered.

Hyperfocused Attention

An intense concentration or fixation on a particular activity or task, often to the exclusion of everything else.

Decreased Appetite

Decreased appetite describes a reduction in the desire to eat, which can be due to various factors such as illness, stress, or medication effects.

Post-Formal Reasoning

A stage of cognitive development characterized by the ability to consider multiple perspectives and integrate conflicting thoughts into a comprehensive understanding.