The 80/20 rule suggests that Group of answer choices 20 percent of marketing effort is wasted. 80 percent of marketing effort is well implemented, but the remaining 20 percent is out of control. 80 percent of the business comes from 20 percent of the customers. it will take 80 percent more effort to get 20 percent more business. None of these is true.

M. cotteleer electronics supplies microcomputer circuitry to a company that incorporates microprocessors into refrigerators and other home appliances. one of the components has an annual demand of 235 units, and this is constant throughout the year. carrying cost is estimated to be $1.25 per unit per year, and the ordering (setup) cost is $21 per order. a) to minimize cost, how many units should be ordered each time an order is placed? b) how many orders per year are needed with the optimal policy? c) what is the average inventory if costs are minimized? d) suppose that the ordering cost is not $21, and cotteleer has been ordering 125 units each time an order is placed. for this order policy (of q = 125) to be optimal, determine what the ordering cost would have to be.