If cost variance is positive, it means that performing the activity cost more than the planned or budgeted cost

Strikes are much more disruptive in pro sports than in mainstream business because

A. players have unique talents and cannot be replaced with temporary replacement workers. B. professional athletes' salaries are so much higher than the average worker. C. sports are seasonal, thus have less time to realize revenue. D. All of these are correct.

Operations managers should be well versed in what disciplines in order to make good decisions?

What will be an ideal response?