The Number of Absences and the Final Grades of 9 $\alpha = 0.01$

question 10

Essay

The number of absences and the final grades of 9 randomly selected students from a statistics class are given below. Calculate Spearman's rank correlation coefficient. Can you conclude that there is a correlation between the final grade and the number of absences?
Use $\alpha = 0.01$ $$\begin{array} { l | c c c c c c c c c } \text { Number of Absences } & 0 & 3 & 6 & 4 & 9 & 2 & 15 & 8 & 5 \\\hline \text { Final Grade } & 98 & 86 & 80 & 82 & 71 & 92 & 55 & 76 & 82\end{array}$$

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