Prepare a master schedule given this information: It is now the end of week $1$; customer orders are $25$ for week $2,16$ for week $3,11$ for week $4,8$ for week $5,$ and $3$ for week $6.$ Use the MPS rule of ordering production when projected on$-$hand inventory would be negative without production. Suppose that there were $64$ pumps in inventory at the beginning of week $1.$ A production lot size of $70$ pumps is used.

Note: Leave no cells blank $-$ be certain to enter $"0"$ wherever required.

Answer is complete but not entirely correct.