Minitab Tutorial

University of Michigan: Six Sigma, P. Hammett 1

Minitab Tutorial

Basic Commands and Data EntryGraphical Tools

Descriptive Statistics

Outline

Minitab Basics Basic Commands, Data Entry, and Organizationy g

Minitab Project Files (*.mpj) vs. Worksheet Files (*.mtw) Data Entry (entering data, copying/pasting from Excel) Numerical Data vs. Categorical (Text) vs. Time/Date Data

Statistical Analysis (‘STAT MENU’) Tally Individual Values Pareto Chart Descriptive Statistics/Graphical Summary

Graphical Analysis (‘GRAPH’ MENU)Hi t /B Pl t/M lti l B Pl t

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Histogram/Box Plot/Multiple Box Plot Time Series Plot Edit Graphical Output

Data Set Manipulation Subset and stratify data (Descriptive statistics by group)

Other Useful Tools: See Appendix

Minitab Tutorial

University of Michigan: Six Sigma, P. Hammett 2

Minitab Project (Example: Loan)

Session Window‘Analysis Output’

MainTools:

STAT

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Worksheet‘Data’

GRAPH

Loan Data Set

Key Output Variable:y p Total Loan Time

Selected Input (X) Variables: UW-Staff (Underwriter Staff) Loan Value (Amount of Loan) Issues-Loan (# of Issues/Defects per Loan)

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Issues Loan (# of Issues/Defects per Loan) Process Steps (See Excel File) Issues by Defect Categories (See Excel)

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Appendix Minitab TipsAppendix Minitab Tips

Quick and Easy Functions of Minitab

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Run LastTool

ProjectManager

Worksheet Window

C l TitlColumn Title

T = Text

D = Date

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Data Direction

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Last Dialog Box

Hit Ctrl + E and you will get your last Dialog Box openy g y g p

Or Click on icon located on the top bar

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Save time!

Top Icons

Scroll = Session Window

Worksheet

Information

Report Pad

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Graphs

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Information on Data

Click on Information icon

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Calculator

Write the title “Loan Time *2” under column C3 Go to Calc / Calculator

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Calculator

Minitab has calculated the Loan Time X 2 and has put it on C3 Column

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Session Folder

Go to Session Go to Session Window/Project Manager

Right click on the output

Select Append to R t

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Report

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Report Pad

Click on R tReport Pad icon

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Report Pad Export

To export the preport pad to Word Right click

on the left menu on “Report Pad”

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p Select “Copy

to Word Processor”

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Tile Tool – Graph Folder

Suppose you want to see two or more graphs at the same time

Go to Graph Folder Select the graphs you want

to use Right click on them

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Right click on them Select “Tile”

Tile Tool

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Tile Tool

Let’s do it again but select “Tile with Worksheet”

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Layout Tool

What if I want to have 2What if I want to have 2 or 3 or 4 graphs on just one image?

Select the graphs you want to have together

Right Click on themS l t “L t T l”

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Select “Layout Tool”

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Layout Tool

Y l You may also: Re-arrange the

order of the graphs Take graphs out Put graphs in Select how many

columns or rows

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Once you have what you want click Finish

Change Data Type

Go to Data / Change Data / gType / Numeric to Text

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Try typing “DC” on the next row

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Brush Tool

On a graph you see some outliers and you want to know which On a graph you see some outliers and you want to know which data point they represent

Confirm that your graph has the green symbol on the top

On the top icon section, select icon Brush Select the outliers

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Brush Tool

On the Data Worksheet you will see them highlighted with a Dot

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Minitab Assistant

For many tools, may use the yMinitab Assistant for pre-formatted Analysis

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Minitab Assistant

Minitab A i t tAssistant Scatter Plot

Example

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