Q$10\mathrm{.}5($Two Workstations$)$ Suppose a process contains two workstations that operate with no buffer between them.

$14\%$L

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Workstation A

Now consider the three possible scenarios below:

Workstation B

Scenario

Processing Time of Workstation A

Processing Time of

Workstation B

Scenario $1$

$5$ minutes

$5$ minutes

Scenario $2$

$5$ minutes

$4$ minutes or $6$ minutes equally likely

Scenario $3$

$5$ minutes

$3$ minutes or $5$ minutes equally likely

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a$.$ Which of the three scenarios will have, on average, the highest flow rate?

b$.$ Which of the three scenarios will have, on average, the lowest flow time?