During the school year a position should be no longer than 15-20 hours a week. The time commitment should reflect how substantial the position/internship project is -- you should be able to easily fill up the internsâ hours with projects related to the position description.(See Chart Above).uring the school year a position should be no longer than 15-20 hours a week. The time commitment should reflect how substantial the position/internship project is -- you should be able to easily fill up the internsâ hours with projects related to the position description. (See Chart Above).
There are three primary causes of budget variance: errors, changing business conditions and unmet expectations. Errors by the budget creators can occur when the budget is being compiled. There are a number of reasons for this, including faulty math, using the wrong assumptions and relying on stale or bad data. Changing business conditions, including changes in the overall economy, can cause budget variances.
Causes for adverse labor rate variance may include: 1  Increase in the national minimum wage rate. 2  Hiring of more skilled labor than anticipated in the standard (this should be reflected in a favorable labor efficiency variance) 3  Inefficient hiring by the HR department. 4  Effective negotiations by labor unions.