A sampling technique in which every element in the population has

an equal chance of being selected is called:

additive sampling.

sequential sampling.

$100$ percent testing.

random sampling.

cumulative sampling.

Closed$-$loop MRP:

is a system which closes the loop between the supplier and the

purchaser.

provides a feedback loop between capacity and the master production

schedule.

requires a feedback loop between purchasing and accounting.

requires a check between the master production schedule and inventory.

allows a unit manager to sequence jobs done in that department.