A Researcher Wishes to Compare the GPAs at the Scarborough $$\begin{array} { l l l l l l l l l l l l } \text { Scarborough } & 3.2 & 4.0 & 2.4 & 2.6 & 2.0 & 1.8 & 1.3 & 0.0 & 0.5 & 1.4 & 2.9\end{array}$$

Essay

A researcher wishes to compare the GPAs at the Scarborough and Mississauga campuses at the University of Toronto are different.The sample data are listed below.At a 0.05 level of significance,does the Wilcoxon rank sum test provide evidence of a difference between the two campuses? $$\begin{array} { l l l l l l l l l l l l } \text { Scarborough } & 3.2 & 4.0 & 2.4 & 2.6 & 2.0 & 1.8 & 1.3 & 0.0 & 0.5 & 1.4 & 2.9\end{array}$$ Mississauga 2.4 1.9 0.3 0.8 2.8 3.0 3.1 3.1 3.1 3.5 3.5