A class of 12 statistics students completed the course with the following exam averages and homework averages.
$$\begin{array} { | c | c | c }
\hline \text { Student } & \text { Exam Averages } & \text { Homewark Averages } \
\hline 1 & 70 & 76 \
\hline 2 & 79 & 83 \
\hline 3 & 65 & 66 \
\hline 4 & 85 & 72 \
\hline 5 & 89 & 77 \
\hline 6 & 87 & 86 \
\hline 7 & 95 & 88 \
\hline 8 & 88 & 91 \
\hline 9 & 77 & 87 \
\hline 10 & 67 & 79 \
\hline 11 & 90 & 93 \
\hline 12 & 96 & 89 \
\hline
\end{array}$$ Calculate and interpret the Spearman coefficient of rank correlation and use the 0.05 level of significance in testing whether its true value could be something other than 0.

Question

A class of 12 statistics students completed the course with the following exam averages and homework averages.
 $$\begin{array} { | c | c | c } 
\hline \text { Student } & \text { Exam Averages } & \text { Homewark Averages } \
\hline 1 & 70 & 76 \
\hline 2 & 79 & 83 \
\hline 3 & 65 & 66 \
\hline 4 & 85 & 72 \
\hline 5 & 89 & 77 \
\hline 6 & 87 & 86 \
\hline 7 & 95 & 88 \
\hline 8 & 88 & 91 \
\hline 9 & 77 & 87 \
\hline 10 & 67 & 79 \
\hline 11 & 90 & 93 \
\hline 12 & 96 & 89 \
\hline
\end{array}$$ Calculate and interpret the Spearman coefficient of rank correlation and use the 0.05 level of significance in testing whether its true value could be something other than 0.

Quizplus · Accepted Answer

The Answer of A class of 12 statistics students completed the course with the following exam averages and homework averages.
 $$\begin{array} { | c | c | c } 
\hline \text { Student } & \text { Exam Averages } & \text { Homewark Averages } \
\hline 1 & 70 & 76 \
\hline 2 & 79 & 83 \
\hline 3 & 65 & 66 \
\hline 4 & 85 & 72 \
\hline 5 & 89 & 77 \
\hline 6 & 87 & 86 \
\hline 7 & 95 & 88 \
\hline 8 & 88 & 91 \
\hline 9 & 77 & 87 \
\hline 10 & 67 & 79 \
\hline 11 & 90 & 93 \
\hline 12 & 96 & 89 \
\hline
\end{array}$$ Calculate and interpret the Spearman coefficient of rank correlation and use the 0.05 level of significance in testing whether its true value could be something other than 0.

A Class of 12 Statistics Students Completed the Course with the Following