Motor Shaft Coded Outside Diameter
Stability and Capability
XBar of Coded Outside Diameter
Note: The sigma was calculated using the range.
R of Coded Outside Diameter
1
Distributions
Coded Outside Diameter
Coded Outside Diameter
Distributions
Coded Outsid
Grille Case Study
Injection Molding
Flowchart for Plastic Molding
Part used in
production.
Fill hopper with
plastic powder.
Is level of
plastic in
hopper
Part goes to
recycle bin.
Quality of
part good?
No
Yes
Open mold,
remove plastic
shape.
No
Yes
Yes
Mo
Alarm Rules for Level
Variables Control Chart
XBar of Diameter
Note: The sigma was calculated using the range.
R of Diameter
Estimate of the process standard deviation: =
The standard deviation of X :
n
=
R
6.55
=
= 2.816
d 2 2.326
2.816
= 1.26
5
Cut offs
Examples of Control Charts
Toyota Cigar Lighter Dimension (mm)
XBar of Dimension
Note: The sigma was calculated using the standard deviation.
S of Dimension
1
Cylinder Bore (3.5XXX inches)
XBar of Cylinder Bore
Note: The sigma was calculated using the sta
Data from Batch Chemical Process1
Table 1: Raw Data
Batch 1
Batch 2
Batch 3
Batch 4
Sample Test 1 Test 2 Test 1 Test 2 Test 1 Test 2 Test 1 Test 2
1
15.5
15.0
15.4
14.8
12.9
12.3
11.6
11.3
2
15.8
15.2
13.9
13.3
13.5
13.8
12.1
12.5
3
14.0
14.5
13.4
14.7
14
Statistics 495, Applied Statistics for Industry I
Name:_
Exam 2, Fall 2008
Site:_
INSTRUCTIONS: You will have 1 hour and 30 minutes to complete the exam. There are 7
questions worth a total of 100 points. Not all questions have the same point value so gau
Statistics 495, Applied Statistics for Industry I
Final Exam, Fall 2008
Name: _
Site: _
INSTRUCTIONS: You will have 2 hours to complete the exam. There are 7 questions
worth a total of 130 points. Not all questions have the same point value so gauge your
Statistics 495, Applied Statistics for Industry I
Exam 1, Fall 2008
Name:_
Site:_
INSTRUCTIONS: You will have 90 minutes to complete the exam. There are 5 questions
worth a total of 100 points. Not all questions have the same point value so gauge your tim
Individual Moving Range Charts
Control Chart
Individual Measurement of Commute Time
Moving Range of Commute Time
Control Chart
Individual Measurement of Distortion
Moving Range of Distortion