An assignment problem is a special form of transportation problem where all supply and demand values equal 0

Which of the following is true of nulls?

A) By default they are excluded from summaries and averages B) They cannot be used in calculations C) They cannot be compared to other values D) All of the above

After the change, direct labor costs as a percentage of sales are projected to decrease because:

A) less work-in-process inventory needs to be moved from location to location. B) fewer employees are needed to produce a product due to the new work design. C) less supervisors are needed to oversee operations. D) All of the above are correct.