Answer: 1. $690 (favorable)
2. $9045 (favorable)
Explanation: These can be computed as follows :-
Labor rate variance = Actual labor cost - (standard rate * actual hours)
= $139,380 - ( $20.1 * 6900 hours )
= $690 (favorable)
.
Labor efficiency variance = ( Actual hours - standard hours ) * (standard rate )
= [6900 hours - (1500 units * 4.3 hours) ] * ($20.1)
= $9045 (favorable)