The WEF Co Distribution warehouse operates around the clock. Each worker is paid the same,

regardless of when his or her shift begins. Each shift is $8$ consecutive hours. Shifts begin at $6$

a$.$m$.,10$ a$.$m$.,2$ p$.$m$.,6$ p$.$m$.,10$ p$.$m$.,$ and $2$ a$.$m$.$ The following table shows the warehouse's

requirements for the numbers of workers to be on duty during specific time periods.

Use Excel to formulate and determine the minimum number of workers needed to satisfy the

warehouse requirements.