If the demand curve for a new brand of golf balls has the following two points on it, p1 = $15, q1 = 1,200 and p2 = $25, q2 = 800, which of the following statements is correct?
l) the price elasticity of demand is .8
ll) the price elasticity of demand is 2.0
lll) the price elasticity of demand is -1.5
lv) the demand is inelastic
v) the demand is elastic
a) only iii and iv are correct.
b) only ii and v are correct.
c) only ii is correct.
d) only iii and v are correct.
e) only i and iv are correct.

Aaron corporation, which has only one product, has provided the following data concerning its most recent month of operations: selling price $ 102 units in beginning inventory 0 units produced 4,900 units sold 4,260 units in ending inventory 640 variable costs per unit: direct materials $ 20 direct labor $ 41 variable manufacturing overhead $ 5 variable selling and administrative expense $ 4 fixed costs: fixed manufacturing overhead $ 64,200 fixed selling and administrative expense $ 2,900 the total contribution margin for the month under variable costing is:

Statistical process control charts: a. indicate to the operator the true quality of material leaving the process. b. display upper and lower limits for process variables or attributes and signal when a process is no longer in control. c. indicate to the process operator the average outgoing quality of each lot. d. display the measurements on every item being produced. e. are a graphic way of classifying problems by their level of importance, often referred to as the 80-20 rule.

How has apple been able to sustain its competitive advantage in the smartphone industry? a. by reducing its network effects b. by targeting its new products and services toward laggards c. by driving the price for the end user to zero d. by regularly introducing incremental improvements in its products