Prepare a master schedule given this information: The forecast for each week of an eight$-$week schedule is $75$ units. The MPS rule is to schedule production if the projected on$-$hand inventory would be negative without it$.$ Customer orders $($committed$)$ are as follows:

Week Customer Orders

$148$

$242$

$337$

$433$

Use a production lot size of $78$ units and no beginning inventory. $($In the ATP row, enter a value of $0($zero$)$ in any periods where ATP should not be calculated. Leave no cells blank $-$ be certain to enter $"0"$ wherever required.$)$