Based on the information below, please compute selection rates and impact ratios and decide whether the Four$-$Fifths rule is violated?

$($Hint: Consider one characteristic at a time; the impact ratio for the best represented group is $1$ or NA$).$

# Of

Candidates

# Hired

Selection Rate

Impact Ratio

$20$ Caucasian $5$

$0\mathrm{.}25$

$1$

$10$ Hispanic $1$

$0\mathrm{.}10$

$0\mathrm{.}4$

$5$ Asian

$1$

$0\mathrm{.}20$

$0\mathrm{.}8$

$15$ Females

$2$

$0\mathrm{.}13$

$0\mathrm{.}52$

$20$ Males

$5$

$0\mathrm{.}25$

$1$