The new employer has the right to disregard the predecessor's collective bargaining agreement

The retail store where David works always adds extra staff during the busy holiday season and summer months. Managers know that this additional staff will relieve some of the stress year-round employees feel. The addition of the extra staff is an example of a _____.

Fill in the blank(s) with the appropriate word(s).

The greater the margin by which the arrival rate exceeds the service rate, the better the performance of the waiting line

Indicate whether the statement is true or false