Variable manufacturing overhead is applied to products on the basis of standard direct labor-hours. if the labor efficiency variance is favorable, the variable overhead efficiency variance will be:

If the labor efficiency variance is favorable, the variable overhead efficiency variance will be unfavorable.

Explanation:

The difference between the time it takes truly to manufacture a product and the time that had been budgeted for it, and the impact that this difference places is called variable overhead efficiency variance.

For example: The number of hours taken to manufacture an amount of product may differ from the actual budgeted hour, it may be more or less.

The VOEV is calculated as:

If the actual labor hour is less than budgeted labor amount, the "variable overhead efficiency variance" is favorable, and if the actual labor hour is more than the budgeted labor hour, the variance is thus unfavorable.

answer; by working independently, the states have a high likelihood of developing innovative solutions that can be employed in other states;

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.