A University Advisor Wants to Determine If There Is a Difference

question 67

Essay

A university advisor wants to determine if there is a difference in the total amount of time spent studying between students taking an online version and a traditional class version of a certain course.The following table contains the sample sizes of each group,and the rank sums for the Wilcoxon rank-sum test. a.Specify the competing hypothesis to determine whether the median study time for online students differs from the median study time for traditional students.
b.What is the value of the Wilcoxon rank-sum test statistic W?
c.Assuming W follows a normal distribution,what is the value of the corresponding test statistic?
d.At the 1% significance level,what is the decision and conclusion?

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Definitions:

Psychosocial Development

The process by which an individual's personal and social identity develops across the lifespan, influenced by various social interactions and experiences.

Fixated

The psychological state or condition in which an individual becomes obsessively focused on an object, concept, or goal, often at the expense of other interests.

Freudian Stage

Stages in psychoanalytic theory proposed by Sigmund Freud, which are believed to be critical in the development of personality, sexuality, and psychological function, transitioning from infancy to adulthood.

Developmental Urges

Innate or instinctual drives that motivate individuals to pursue growth or change as part of their development.