A Single-Phase Waiting-Line System Meets the Assumptions of Constant Service

question 15

Multiple Choice

A single-phase waiting-line system meets the assumptions of constant service time or M/D/1. Units arrive at this system every 10 minutes on average. Service takes a constant 4 minutes. The average length of the queue L_q is

• A) 0.4
• B) 0.133
• C) 4.167
• D) 4.583
• E) 6

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Definitions:

Diminishing-returns Theory

The principle that says that if one factor of production is increased while others are held constant, the incremental output will eventually decrease.

Wage Disparity

The difference in wages earned by different groups of workers, often arising from factors such as occupation, education, experience, or gender.

Talent and Ability

The natural aptitude or acquired skills possessed by individuals that enable them to perform certain tasks or excel in certain fields.

Median Earnings

The middle value of income earned, such that half of earners make more and half make less, often used to measure central tendency of income distribution.