ID Control Chart$3$

A manager wishes to build a $3-$sigma range chart for a process. The sample size is five, the mean of sample means is $28\mathrm{.}5,$ and the average range is $3\mathrm{.}9.$ Refer to Table S$6\mathrm{.}1$ in the textbook, for the appropriate values of D$3$ and D$4.$ What are the UCL and LCL$,$ respectively, for this range $($R$)$ chart?

$30,75$ and $26\mathrm{.}25$

$40\mathrm{.}2$ and $16\mathrm{.}8$

$11\mathrm{.}2\text{'}?$

$8\mathrm{.}25$ a$$u v