A linear programming computer package is needed.

Epsilon analysts have estimated the minimum number of call$-$center employees needed by day of week for the upcoming vacation season $($June$,$ July, and the first two weeks of August$).$ These estimates are given in the following table.

$\backslash$table$[[$Day$,\backslash$table$[[$Minimum Number of$],[$Employees Needed$]]],[$Monday$,80],[$Tuesday$,55],[$Wednesday$,50],[$Thursday$,70],[$Friday$,100],[$Saturday$,85],[$Sunday$,55]]$ needed to meet the minimum requirements. $($Let $x_j=$ the number of call$-$center employees who start work on day $\frac{?}{?}$ where $i=1=$ Monday, $i=2=$ Tuesday, etc$).$

Min $|x_1+x_2+x_3+x_4+x_5+x_6+x_7|$

s$.$t$.$

Mond:

Tuesda

Wednesday

Thursda;

Frida$)$

Saturda;

Sunda

$x_1,x_{2^{\text{'}}},x_{3^{\text{'}}},x_{4^{\text{'}}},x_{5^{\text{'}}}{x}_{5^{\text{'}}}{x}_7=0$

Find the optimal solution.

$(x_1,x_2,x_3,x_4,x_5,x_6,x_7)=(,)$

Give the number of call$-$center employees that exceed the minimum required.

$(M,Tu,W,Th,F,Sa,Su)=(,)$