A Catalogue Company That Receives the Majority of Its Orders

question 130

Multiple Choice

A catalogue company that receives the majority of its orders by telephone conducted a study to determine how long customers were willing to wait on hold before ordering a product.The length of time was found to be a random variable best approximated by an exponential distribution with a mean equal to 3 minutes.
-What proportion of customers having to hold more than 4.5 minutes will hang up before placing an order?

• A) 0.51342
• B) 0.48658
• C) 0.22313
• D) 0.77687

---

Definitions:

Waiting Time

The duration between two events, often used in service and queueing theory to analyze performance and customer satisfaction.

Electric Bill

The monthly statement received detailing the cost incurred for electricity consumption.

Jury Verdict

A decision made by a jury, reflecting the outcome of a trial.

Jury People

Members of a selected group who are tasked with making a decision in a legal case; also known as jurors.