Answer:
See below
Explanation:
Given the above, we will calculate first the standard hours allowed for actual work using the formula below
Standard hours allowed for actual work
= Total number of applications × Number of standard
= 2.500 × 8 hours × 10
= 2,000 hours
Therefore, the labor efficiency variance
= (Actual hours worked - Standard hours allowed for actual work) × Standard rate
= (1,920 - 2,000 ) × $15
= -$1,200
The labor efficiency variance is $1,200 favorable