Let x equal a student’s GPA in the fall semester and y the

Chapter 8, Problem 5E

(choose chapter or problem)

Let \(x\) equal a student’s GPA in the fall semester and y the same student’s GPA in the spring semester. Let m equal the median of the differences, \(x − y\). We shall test the null hypothesis \(H_{0}: m=0\) against an appropriate alternative hypothesis that you select on the basis of your past experience. Use a Wilcoxon test and the following 15 observations of paired data to test \(H_{0}\):

Equation Transcription:

Text Transcription:

x  

y  

x-y  

H_0: m =0  

H_0