$.$

Effective interest rate, as a percent, rounded to $4$ decimal places $=\%$

$($b$)$ Compute the effective interest rate corresponding to a nominal interest rate of $11\mathrm{.}76\%$ compounded monthly.

Effective interest rate, as a percent, rounded to $4$ decimal places $=\%$

$($c$)$ Select the investment that offers the better return.

$12\%$ compounded semiannually

$11\mathrm{.}76\%$ compounded monthly