9. A flexible budget is ___________________.

a. gives actual figures for variable and fixed overhead

b. gives actual figures for selling price

c. is not used in overhead variance calculations

d. predicts estimated revenues and costs at varying levels of production

10. The variable overhead efficiency variance is caused by the difference between which of the following?

a. actual and standard overhead rates

b. actual and budgeted units

c. actual and standard allocation base

d. actual units and actual overhead rates

11. Which of the following is a possible cause of an unfavorable material price variance?

a. buying substandard materials

b. purchasing too much material

c. hiring substandard workers

d. purchasing higher-quality material

12. Which of the following is a possible cause of an unfavorable labor efficiency variance?

a. paying too much for workers

b. buying higher-quality materials

c. hiring substandard workers

d. making too many units