11) Mixed strategies in aggregate planning may utilize inventory, work force, and production rate changes over the planning horizon. 12) Finding an ideal mixed strategy is complicated by the huge number of possible strategies. 13) Dependence on an external source of supply is found in which of the following aggregate planning strategies? A) varying production rates through overtime or idle time B) subcontracting C) using part-time workers D) back ordering during high demand periods E) hiring and laying off 14) Which of these is among the demand options of aggregate planning? A) subcontracting B) back-ordering during high-demand periods C) changing inventory levels D) varying workforce size E) varying production rates through overtime or idle time 15) In the service sector, which of the following aggregate planning strategies might direct your client to a competitor? A) using part-time workers B) subcontracting C) changing inventory level D) varying production rates through overtime or idle time E) varying work force size by hiring or layoffs 16) Which of the following aggregate planning strategies is a capacity option? A) influencing demand by changing price B) counterseasonal product mixing C) influencing demand by extending lead times D) changing inventory levels E) influencing demand by back ordering 17) Which of these aggregate planning strategies is a capacity option? A) back ordering B) using part-time workers C) counterseasonal product mixing D) changing price E) promotion 18) Which of the following aggregate planning strategies is known to lower employee morale? A) yield management B) counterseasonal product and service mixing C) changing inventory levels D) varying work force size by hiring or layoffs E) back ordering during high demand periods 19) Which of the following aggregate planning options is NOT associated with manipulation of product or service demand? A) price cuts or discounts B) promotion C) subcontracting D) counterseasonal products or services E) advertising 20) Which of the following aggregate planning options attempts to manipulate product or service demand? A) inventories B) part-time workers C) subcontracting D) overtime/idle time E) price cuts