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Two Troubleshooters Handle Service Calls for 10 Machines

question 21

Essay

Two troubleshooters handle service calls for 10 machines.The average time between service requirements is 18 days, and service time averages 2 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.


Definitions:

Standard Score

A score that has been transformed to fit a common scale, allowing for comparison across different tests or assessments.

T Score

A standardized type of score that has a mean of 50 and a standard deviation of 10, used in various psychological and educational tests.

Standard Deviation

is a statistical measure that quantifies the amount of variation or dispersion of a set of values around the mean (average) value.

Standard Score

A score that has been transformed to fit a given mean and standard deviation, facilitating the comparison across different tests or assessment measures.

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