A manager wants to build $3-$sigma control limits for a process. The target value for the mean of the process is $10$ units, and the standard deviation of the process is $6.$ If samples of size $9$ are to be taken, the UCL and LCL will receptively be

Question $1$ options:

$16$ and $4.$

$-8$ and $28.$

$12$ and $8.$

$4$ and $16.$

$8$ and $12.$