A potential cause of internal invalidity in an experiment, due to the subjects getting older between the pre- and posttests, becoming more experienced, more (or less) intelligent, or physically stronger.?

a. Experimental validity

b. Hawthorne effect

c. Maturation

d. Involvement error

Which of the following would be an accurate statement about achieving a balanced budget

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:

The purpose of the transportation approach for location analysis is to minimize which of the following? a. total costsb. total fixed costsc. the number of shipmentsd. total shipping costse. total variable costs