A Bank of 10 Machines Requires Regular Periodic Service

question 64

Multiple Choice

A bank of 10 machines requires regular periodic service. Machine running time and service time are both exponential. Machines run for an average of 44 minutes between service requirements, and service time averages six minutes per machine. What is the average number of machines down when there is one operator?

• A)1.49
• B)3.35
• C)4.40
• D)6.65
• E)8.51

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Definitions:

Affect Intensity

The strength or degree of emotional responses an individual typically experiences, ranging from low to high intensity.

Personality Dimension

A continuum of personality traits or characteristics, used to describe variations in human behavior and personality.

Preferences Need No Inferences

A principle suggesting that individuals' choices or preferences can be directly observed without needing to infer underlying motives or reasons.

Appraisal

The process of evaluating the significance of a particular event or situation, often considering one's own resources to handle it.