A Medical Researcher Suspects That the Pulse Rate of Drinkers $\alpha = 0.05$

A medical researcher suspects that the pulse rate of drinkers is higher than the pulse rate of non-drinkers. Use the sample statistics below to test the researcher's suspicion. Use $\alpha = 0.05$ .
$\begin{array} { l l } \text { Drinkers } & \text { Nondrinkers } \\ \mathrm { n } _ { 1 } = 100 & \mathrm { n } _ { 2 } = 100 \\ \overline { \mathrm { x } } 1 = 88 & \overline { \mathrm { x } } 2 = 85 \\ \mathrm {~s} 1 = 4.8 & \mathrm {~s} _ { 2 } = 5.3 \end{array}$