Good day! I'm totally new to SPSS (and the test as well, but after some research I've finally demystified a bit about Mann-Whitney and how to do the test in SPSS. The only problem I'm currently facing is the analysis) And so in this snippet, I want to discover how the researcher came up with this analysis:
How was he able to come up with a conclusion that there is no significant difference between the examination marks? What specific data in the table made him conclude that? What variables did he look at? If I were to use a Mann-Whitney test and have to interpret the results, where will I look at? What are the factors do I have to consider? Any help would be very much appreciated. :)
Also, what's the purpose of the Z and Wilcoxon W?