Two Troubleshooters Handle Service Calls for 10 Machines

question 28

Essay

Two troubleshooters handle service calls for 10 machines. The average time between service requirements is 18 days, and service time averages two days. Assume exponential distributions. While running, each machine can produce 1,500 pieces per day. Determine:
(A) the percentage of time troubleshooters are idle.
(B) each machine's net productivity.
(C) If troubleshooters represent a cost of $150 per day, and machine downtime cost is $600 per day, would another troubleshooter be justified? Explain.

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Definitions:

Physical Abuse

The infliction of bodily harm or injury onto another person through forceful actions.

Conditioning

A learning process by which a neutral stimulus becomes associated with a meaningful stimulus and acquires the capacity to elicit similar responses.

Agoraphobia

An anxiety disorder characterized by an intense fear of places or situations where escape might be difficult or help unavailable, often leading to avoidance of public places.

Stimulus Generalization

The process by which a conditioned response is triggered not only by the conditioned stimulus but also by stimuli that are similar to the conditioned stimulus.