13. HoW ao varTaiic What causes these variances? promote the management ost by exception doctrine? 12. Minnie Divers, the man- ager of the marketing de-14. Carmen Douglas claims that her company's perfor- mance evaluation system partment for one of the industry's leading retail businesses, has been noti fied by the accounting department that her depart- ment experienced an unfa- vorable sales volume variance in the preceding period but a favorable sales price variance. Based on 1- is unfair. Her company uses return on investment (ROI) to evaluate perfor- mance. Ms. Douglas says thatthough her ROI is lowor saan another man- he ager's, her performance is far superior. Is it possible ICE QUESTIONS 13. HoW ao varTaiic What causes these variances? promote the management ost by exception doctrine? 12. Minnie Divers, the man- ager of the marketing de-14. Carmen Douglas claims that her company's perfor- mance evaluation system partment for one of the industry's leading retail businesses, has been noti fied by the accounting department that her depart- ment experienced an unfa- vorable sales volume variance in the preceding period but a favorable sales price variance. Based on 1- is unfair. Her company uses return on investment (ROI) to evaluate perfor- mance. Ms. Douglas says thatthough her ROI is lowor saan another man- he ager's, her performance is far superior. Is it possible ICE QUESTIONS