10 This question will be sent to your instructor for grading. The following standards for variable overhead have been established for a company that makes only one product Standard hours per unit of output Standard variable overhead rate 3.6 hours $16.05 per hour The following data pertain to operations for the last month: Actual hours Actual total variable overhead cost. Actual output Required: a. What is the variable overhead rate variance for the month? 5,000 hours $80,000 b. What is the variable overhead efficiency variance for the month? 1,300 units