12. Select True or False

(a) Average investment in inventory under a Q-system is generally less than that in a P-system.

(b) Order costs include the cost elements of set-up costs, receiving and inspection costs and transportation costs.

(c) Keeping higher reorder points would generally result in a lower level of safety stocks.

(d) In a Q-system of inventory control, in spite of considerable variations in demand the re-order point remains the same.

(e) Poka-yoke means to avoid completely the possibility of committing any errors or mistakes.