The Ages and Systolic Blood Pressures (Measured in Millimeters of Mercury)

Essay

The ages and systolic blood pressures (measured in millimeters of mercury) of 9 randomly selected adults are given below. Calculate Spearman's rank correlation coefficient. Can you conclude that there is a correlation between age and blood pressure? Use $\alpha = 0.05$ $$\begin{array} { l | c c c c c c c c c } \text { Age } & 38 & 41 & 45 & 48 & 51 & 53 & 57 & 61 & 65 \\\hline \text { Pressure } & 116 & 120 & 123 & 131 & 142 & 145 & 148 & 150 & 152\end{array}$$