The accuracy of a labor standard is to be within $\backslash$pm $6\mathrm{.}5\%,$

and the confidence level is $99\%.$ The standard deviation of the sample is $3$ and the mean is

$16.$

What sample size should be used? $($Round to the neraest whole unit.$)$

Part $2$

A$\mathrm{.}32$

B$\mathrm{.}14$

C$\mathrm{.}7$

D$\mathrm{.}4$

E$\mathrm{.}55$