# EMBRY RIDDLE MGMT651 3.4 – Assignment: Module 3 Problem Set

Instructions:
Format for Problem Set:
1. Title page
3. Reference page (if needed
and add citations for every reference)

Answers to these questions are found in Chapters
6, 7, 10, and 11

Chapter 6:
1. What relationship is there
between learning curves and productivity measurement?

2. One manufacturer has seen a
typical learning percentage of 90 percent in the firm. It has recently found
out that a competitor has a percentage of 85 percent. What do you think about
this?

Chapter 7:

3. What is a customer order
decoupling point? Why is it important?

4. It has been noted that
during World War II Germany made a critical mistake by having its formidable
Tiger tanks produced by locomotive manufacturers, while the less formidable U.
S. Sherman tank was produced by American car manufacturers. Use the
product-process matrix to explain that mistake and its likely result.

5. Why is it that reducing the
number of moves, delays, and storages in a manufacturing process is a good thing?
Can they be completely eliminated?

Chapter 10:

6. Students arrive at the
Administrative Services Office at an average of one every 15 minutes, and their
requests take on average 10 minutes to be processed. The service counter is
staffed by only one clerk, Judy Gumshoes, who works eight hours per day. Assume
Poisson arrivals and exponential service times.

a. What percentage of time is
Judy idle?
b. How much time, on average,
does a student spend waiting in line?
c. How long is the (waiting)
line on average?
d. What is the probability
that an arriving student (just before entering the Administrative Services
Office) will find at least one other student waiting in line?

7. A cafeteria serving line
has a coffee urn from which customers serve themselves. Arrivals at the urn
follow a Poisson distribution at the rate of three per minute. In serving
themselves, customers take about 15 seconds, exponentially distributed.

a. How many customers would
you expect to see on the average at the coffee urn?
b. How long would you expect
it to take to get a cup of coffee?
c. What percentage of time is
the urn being used?
d. What is the probability
that three or more people are in the cafeteria?
e. If the cafeteria installs
an automatic vendor that dispenses a cup of coffee at a constant time of 15 seconds, how does this change your

Chapter 11:

8. Describe cycle time as it
relates to business processes. Why is it important to the management of
business processes? How does it relate to concepts like productivity and
capacity utilization?

9. Explain how having more
work-in-process inventory can improve the efficiency of a process. How can this