A Medical Researcher Suspects That the Variance of the Pulse $\alpha = 0.05 .$

A medical researcher suspects that the variance of the pulse rate of drinkers is higher than the variance of the pulse rate of non-drinkers. Use the sample statistics below to test the researcher's suspicion. Use $\alpha = 0.05 .$
Drinkers
Non-drinkers
$n _ { 1 } = 61$
$n _ { 2 } = 121$
$\mathrm { s } _ { 1 } = 5.46$
$s _ { 2 } = 3.71$ Assume the samples were randomly selected from normal populations.