Answer:
2. $6.00
Step-by-step explanation:
The formula to compute the variable overhead efficiency variance is shown below:
Variable overhead efficiency variance = (standard direct labor hours - Actual direct labor hours ) × variable overhead rate per hour
-$3,600 = (9,000 hours - 9,600 hours) × variable overhead rate per hour
-$3,600 = - 600 hours × variable overhead rate per hour
So, the variable overhead rate per hour would be
= $3,600 ÷ 600 hours
= $6 per hour
The standard direct labor hours would be
= 10,000 hours ÷ 5,000 units × 4,500 units
= 2 hours × 4,500 units
= 9,000 hours