$2.$Using the result of part a$,$ and available hours during regular time $(80$ hours per week$)$ and overtime $(36$ hours per week$),$ production rate of $1\mathrm{.}14$ hours per unit, setup time of eight hours, holding cost per unit per week of $$150,$ setup cost of $$400,$ and overtime cost of $$212$ per unit, and similar information about the other families, the linear programming software has determined the following quantities for this family for weeks $1$ to $4$: $11\mathrm{.}14,14\mathrm{.}00,10\mathrm{.}34,$ and $10\mathrm{.}70$ units. What is the aggregate ending inventory in each week? Are they greater than or equal to the required aggregate safety stocks for each week?