$4.$ A production manager at Ultra Clean Dishwashing Company is monitoring the quality of the company's production process. There has been concern relative to the quality of the operation in accurately filling the $16$ ounces of dishwashing liquid. The product is designed for a fill level of $16\mathrm{.}00\backslash$pm $0\mathrm{.}30.$ The company collected the following sample data on the production process: