A manufacturing company uses a standard costing system in which standard machine-hours (MHs) is the measure of activity. Data from the company's flexible budget for manufacturing overhead are given below:
The following data pertain to operations for the most recent period: 
-What was the variable overhead efficiency variance for the period to the nearest dollar?
Definitions:
Laboratory Observation
A research method in which subjects are observed in a controlled environment to ensure consistency and control over variables.
Exploratory Research
A type of research designed to investigate a problem or situation when there are few or no earlier studies to refer to.
Experimental Research
A method of research that allows the investigator to control and manipulate the variables of interest, to establish cause-and-effect relationships.
Negative Correlation
An association between increases in one variable and decreases in another.
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