Question:

Consider a 2-step (or 2 stage) process. The processing time at Step 1 is 4 minutes for half the time (or 50% of the time) and is 8 minutes for half the time (or 50% of the time). Similarly, the processing time at Step 2 is also 4 minutes for half the time (or 50% of the time) and is 8 minutes for half the time (or 50% of the time). This means that the process has a mix of both easy and hard jobs (for example, in healthcare delivery a doctor can have patients with simple and complex needs). Which of the following statement(s) hold for this process?