It takes more time to maintain a Q-model than it does a P-model. True or False True False A Q-model has variable order quantities while a P-model has fixed order quantities. True or False True False In making any decision that affects inventory size, which of the following costs do not need to be considered? Multiple Choice Holding costs Setup costs Ordering costs Fixed costs Shortage costs The Pareto principle is best applied to which of the following inventory systems? Multiple Choice EOQ 0 Fixed-time-period ABC classification O Fixed-order quantity Single-period ordering system