A Multiple-Channel Queuing System with a Poisson Arrival Rate and Exponential

question 57

Multiple Choice

A multiple-channel queuing system with a Poisson arrival rate and exponential service time has an average arrival rate of 4 customers per hour and an average service time of 18 minutes per customer. What is the minimum number of servers required to avoid an overloaded system?

• A) 1
• B) 2
• C) 3
• D) 4

---

Definitions:

Validity

The extent to which a test, measurement, or research study accurately measures what it is intended to measure.

Interrater Reliability

The degree of agreement among different raters or observers assessing the same phenomenon.

Split-half Reliability

The reliability of a test measured by dividing it into two parts and assessing how consistently they produce similar results.

Alternate Forms

A method in psychological and educational measurement where two different versions of a test are used to assess the same construct, reducing possible test-retest bias.