Green Belt –SIX SIGMA OPERATIONAL Introduction to Minitab
aControl Charts
l Designing and Analyzing Experiments l Doing Data Exploration
l And Much More
Data is entered using a spreadsheet-like format onto a “worksheet”
Pull-down menus allow a detailed selection of statistical options
Additional pull-down menus may appear
“Working” screen permits personalization
Variable selection
Graphing options
Analysis options
“OK” runs the internal programs, providing results either on graphical inserts or on a “session” window
Results can be saved either as a worksheet, or as a project, which is a collection of worksheets
Data is entered onto a worksheet either by copying from another program, such as EXCEL, or by manually entering the data
There are two different data types
Variable
Character (these variables then get a “T” subscript after the column designation, such as C4 -T)
A separate row exists for the column title
New data can be permanently created using “Calc”
The working screen permits the desired exact analysis
The working screen has options to get more details in the
analysis
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1020Normal
95% Confidence Interval for Mu
697071 95% Confidence Interval for Median
1st Quartile
Median
3rd Quartile
Maximum
69.121
9.416
69.021
63.412
69.977
76.653
103.301
70.879
10.662
70.737 95% Confidence Interval for Mu 95% Confidence Interval for Sigma 95% Confidence Interval for Median
Details of the analysis may appear in the Session Window
* Use “Intro to Minitab Examples.xls”Basic Statistics
Stat > Basic Statistics > Display Descriptive Statistics
Normality Test
Stat > Basic Statistics > Normality Test
Charts for Multiple-Level Data
Stat > Quality Tools > Multi-Vari Chart
Process Capability
Stat > Quality Tools > Capability Analysis (Normal)
Control Charts
Stat > Control Charts > Xbar -S
Advanced Process Capability
Stat > Quality Tools > Capability Sixpack (Normal)
Three Dimensional Plots
Graph > 3D Surface Plot