Answer:
Labour time (efficiency) variance = $9,984 unfavorable
Step-by-step explanation:
The labour time variance is the dollar value of the difference between the standard time allowed for the actual output produced and the actual time used.
Hours
Standard hours ( 960 units × 7.2 hours ) = 6,912
Actual hours 7,680
Time variance 768 Unfavorable
× standard labour rate × $13
Variance $9,984 Unfavorable