Answer:
Direct labor time (efficiency) variance=$17,160 unfavorable
Explanation:
To calculate the direct labor efficiency variance, we need to use the following formula:
Direct labor time (efficiency) variance= (Standard Quantity - Actual Quantity)*standard rate
Direct labor time (efficiency) variance= (7,150*0.9 - 7,150)*24
Direct labor time (efficiency) variance= (6,435 - 7,150)*24
Direct labor time (efficiency) variance=$17,160 unfavorable