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A University Advisor Wants to Determine If There Is a Difference

question 73

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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 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?
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?


Definitions:

Buoyancy

The force that causes objects to float in a fluid by displacing a volume of fluid whose weight equals the object's weight.

Adaptation

The process by which organisms become better suited to their environment through genetic changes over generations.

Gravity

The natural force of attraction exerted by a celestial body, such as Earth, upon objects, drawing them toward its center.

Animal Movement

The various motions accomplished by animals as a result of muscle contraction.

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