A Teacher Uses Two Different Programs to Remediate Students

Essay

A teacher uses two different programs to remediate students.Results for each group on a standardized test are listed in the table.At the 0.05 level of significance,does the Wilcoxon rank sum test provide evidence of a difference between the two programs in terms of the scores that students obtain? $\begin{array}{cccc|ccc}&&{\text { Program I }} &&& \text { Program II } \\\hline 60 & 75 & 61 & 63 & 66 & 89 & 68 & 77 \\86 & 69 & 64 & 70 & 84 & 80 & 81 & 87 \\& 72 & 82 & 59 & 78 & 73 & 91 & 93 \\& & & & & & 94 & 95\end{array}$