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

question 51

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 U statistic is __________

• A) 29
• B) 45
• C) 90
• D) 36
• E) 43

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Definitions:

Negative Residual

The difference between an observed value and the predicted value in a regression analysis, specifically when the observed value is less than the predicted value.

Electricity Usage

The amount of electric energy consumed by a device, home, or organization over a specific period.

Square Feet

A unit of area measurement in the Imperial and US customary systems, equal to the area of a square with sides one foot long.

Golf Ball

A specialized sports equipment designed specifically for use in golf, characterized by its small size and dimpled surface.