Microsoft Word - Assignment#2_New.docx
Problem 1
The Three Sigma Pizza Emporium is experiencing problems with pizza delivery. Below is a poor problem
statement:
Customers are complaining about delivery times.
I would like you to rewrite the poor problem statement above as an effective problem statement in the table below,
making sure to include all four required elements.
Each response in the table below should be written as a complete sentence, or two. I should be able to read the
sentences from top to bottom as an integrated paragraph that describes the problem.
Problems Statement
Element Response
A
ief description of the
problem and the metric
used to describe the
problem è
Where the problem is
occu
ing by process
name and location è
The time frame over
which the problem has
een occu
ing è
The size or magnitude of
the problem è
Problem 2
Returning again to the Three Sigma Pizza Emporium situation, below is their poor objective statement.
Improve pizza delivery times.
I would like you to help the team prepare an effective objective statement for the pizza delivery Six Sigma project
y rewriting the poor objective statement above as an effective objective statement in the table below, making
sure to include all six required elements.
Each response in the table below should be written as a complete sentence, or two. I should be able to read the
sentences from top to bottom as an integrated paragraph that describes the objective of the Six Sigma project.
Objective Statement
Element Response
The metric to be
improved è
The cu
ent baseline è
The goal è
The timeframe for
improvement è
Alignment with corporate
goals or objectives è
Impact on corporate
goals or objectives è
Problem 3
Create a SIPOC diagram with 4 to 7 process steps for one of the following activities:
Ø Registering for classes.
Ø A regular visit to your doctor’s office.
Ø Changing the oil in an automobile.
Ø Changing a flat tire.
Problem 4
Create a swim-lane process map for placing and receiving an order at a fast food restaurant.
Ø Please choose a restaurant where you can see the food being prepared (e.g Panera Bread,
McDonalds, A
ys, Subway, Taco Bell, etc.).
Ø Your process map will have three swim-lanes: you, cashier (taking your order), and cook
(preparing food).
Ø You do not need to include any metrics (times, distances, etc.).
Microsoft Word - Assignment#3.docx
1. What are the differences between attribute measurement and variable measurement?
2. What an inspector should do when a defect is found?
3. What are the differences between natural variations and assignable variations?
4. For a process quality characteristics, the specification limits are 0.4037 +/ XXXXXXXXXX
(that is from XXXXXXXXXXto XXXXXXXXXXThe following data gives the data for 14 measurement
data sets, each data set is a subgroup of 5 measurement. The value is recorded in the
units of XXXXXXXXXXthat is, the specification limit will be considered 24 to 50) Based on
the following data, compute Cp,Cpk,Pp and Ppk.(Use MINITAB is ok) and determine if
the capability of the process.
Subgroup
# 1 2 3 4 5
Subgroup
# 1 2 3 4 5
1 36 35 34 33 32 8 34 38 35 34 38
2 31 31 34 32 30 9 36 35 37 34 33
3 30 30 32 30 32 10 30 37 33 34 35
4 32 33 33 32 35 11 28 31 33 33 33
5 32 34 37 37 35 12 33 30 34 33 35
6 32 32 31 33 33 13 35 36 29 27 32
7 33 33 36 32 31 14 33 35 35 39 36
5. The following table listed 25 subgroups of measurement data with group size 3:
# c1 c2 c3 # c1 c2 c3
1 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 14 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
2 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 15 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
3 XXXXXXXXXX 49.639 XXXXXXXXXX 16 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
4 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 17 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
5 47.911 XXXXXXXXXX XXXXXXXXXX 18 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
6 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 19 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
7 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 20 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
8 49.58 XXXXXXXXXX XXXXXXXXXX 21 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
9 51.106 XXXXXXXXXX XXXXXXXXXX 22 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
10 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 23 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
11 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 24 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
12 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX 25 XXXXXXXXXX 48.048 XXXXXXXXXX
13 XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX
(a) The specification limits are 49 +/- 3. Assume that the data is normally distributed!
Estimate process capability ratio’s (Cp, Cpk, Pp, Ppk). Is the process capable?
(b) If the specification limits were 51 +/- 3. Re-calculate process capability ratio’s
(Cp, Cpk, Pp, Ppk). Is the process still capable?
(c) Comment on the difference between Cp and Cpk ratios.