Figure 6S-1
Customers Enter a Haberdashery That Sells Only Ascots

question 29

Multiple Choice

Figure 6S-1
Customers enter a haberdashery that sells only ascots, cufflinks and suspenders and are served by the owner operator. The owner is the only employee, so if customer B arrives while customer A is being served, customer B must patiently wait until customer A exits the system. Customers are always willing to wait regardless of how long their wait is. The interarrival and service times are uniformly distributed and shown in the table below.
$$\begin{array} { | c | c | c | } \hline \text { Range } & \text { Interarrival (min) } & \text { Service (min) } \\\hline 0.000 - 0.200 & 3 & 6 \\\hline 0.201 - 0.400 & 6 & 7 \\\hline 0.401 - 0.600 & 9 & 8 \\\hline 0.601 - 0.800 & 12 & 9 \\\hline 0.801 - 1.000 & 15 & 10 \\\hline\end{array}$$ The stream of random number for a Monte Carlo simulation of the system appear in this table>
$$\begin{array} { | c | c | } \hline \text { Interarrival } & \text { Service } \\\hline .114 & .979 \\\hline .899 & .297 \\\hline .925 & .162 \\\hline .085 & .574 \\\hline .824 & .235 \\\hline .151 & .593 \\\hline .223 & .956 \\\hline .477 & .845 \\\hline\end{array}$$
-Use the data from Figure 6S-1. What is the total time that customers must wait from 8:00 am to 9:15 am?

• A)17 minutes
• B)18 minutes
• C)19 minutes
• D)20 minutes

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Definitions:

Zero Population Growth

No growth in population size.

Births Equals Deaths

A demographic state where the number of births in a population is equal to the number of deaths, resulting in zero population growth.

Demographic Transition

The transition from high birth and death rates to lower birth and death rates as a country or region develops from a pre-industrial to an industrialized economic system.

Education

The process of facilitating learning, or the acquisition of knowledge, skills, values, beliefs, and habits through various methods such as teaching, training, storytelling, discussion, and directed research.