Problem $2-$ please write steps on how to do it on excel as well!

The long run average cost to treat patients with a particular type of illness at a physician's group has been $$12,235$ with a

standard deviation of $$6,754.$ The costs for the most recent $10$ patients with this illness for each of the $8$ physicians that treat this

illness at the hospital are given in the table below. Calculate control limits for the appropriate

control chart and identify

any physicians outside of the control limits$.$ Use

control limits corresponding to $95\%$ confidence