Q$18.$ Stock Y has a beta of $1\mathrm{.}2$ and an expected return of $11\mathrm{.}1$ percent. Stock $Z$ has a beta of $0\mathrm{.}80$ and an expected return of $7\mathrm{.}85$ percent. If the risk$-$free rate is $2\mathrm{.}4$ percent and the market risk premium is $7\mathrm{.}2$ percent, are these stocks correctly priced?