A Researcher Wants to Determine Whether the Means of Two

question 86

Multiple Choice

A researcher wants to determine whether the means of two independent populations are the same.She has two independent random samples,one from each population,shown in the following table: She uses the Mann-Whitney U test and a significance level of 0.05.The sum of ranks for sample II is ______.

• A) 72
• B) 73
• C) 75
• D) 77
• E) 78

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Definitions:

Sensory Modalities

Different forms of sensory perceptions, such as sight, sound, touch, taste, and smell, through which we experience the world.

Cognitive Schema

A mental framework that helps organize and interpret information in the world around us.

Concept

A mental category that groups objects, relations, activities, abstractions, or qualities having common properties.

Mental Set

A tendency to approach situations in a certain way because that method worked in the past.