Minitab is a software product that helps you to analyze the data. This is designed essentially for the Six Sigma professionals. It provides a simple, effective way to input the statistical data, manipulate that data, identify trends and patterns, and then extrapolate answers to the current issues. ...
Minitab is a software product that helps you to analyze the data. This is designed essentially for the Six Sigma professionals. It provides a simple, effective way to input the statistical data, manipulate that data, identify trends and patterns, and then extrapolate answers to the current issues. This is most widely used software for business of all sizes - small, medium and large. Minitab provides a quick, effective solution for the level of analysis required in most of the Six Sigma projects.
Size: 1.43 MB
Language: en
Added: Aug 08, 2018
Slides: 69 pages
Slide Content
MINITAB@18
LEAN SIX SIGMA BLACK BELT
AU TVS Centre for Quality Management
ANNA UNIVERSITY
BY
RAMAR BOSE(Ph.D)
Minitabisasoftwareproductthathelpsyoutoanalyzethedata.ThisisdesignedessentiallyfortheSix
Sigmaprofessionals.Itprovidesasimple,effectivewaytoinputthestatisticaldata,manipulatethatdata,
identifytrendsandpatterns,andthenextrapolateanswerstothecurrentissues.Thisismostwidelyused
softwareforbusinessofallsizes-small,mediumandlarge.Minitabprovidesaquick,effectivesolutionfor
thelevelofanalysisrequiredinmostoftheSixSigmaprojects.
Introduction on Minitab
MINITAB@18
LEAN SIX SIGMA BLACK BELT
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
MINITAB@18
LEAN SIX SIGMA BLACK BELT
User Interface
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Sessionwindow
TheSessionwindowdisplaystheresultsofyour
analysesintextformat.Also,inthiswindow,youcan
entersessioncommandsintheCommandLinepane
insteadofusingMinitab’smenus.
Worksheet
Theworksheet,whichissimilartoaspreadsheet,is
whereyouenterandarrangeyourdata.Youcanopen
multipleworksheets.
ProjectManager
Thethirdwindow,theProjectManager,isminimized
belowtheworksheet.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Data Types
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
I. Numeric data
Numbers, such as 264 or 5.28125.
II. Text data
Letters, numbers, spaces, and special characters, such as Test #4 or North America.
III. Date/time data
Dates, such as Mar-17-2013, 17-Mar-2013, 3/17/13, or 17/03/13.
Times, such as 08:25:22 AM.
Date/time, such as 3/17/13 08:25:22 AM or 17/03/13 08:25:22.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Open and examine a worksheet
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Center: shipping center name
Order: order date and time
Arrival: delivery date and time
Days: delivery time in days
Status: delivery status
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Graphs
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.Individual Value Plot
2.Dot Plot
3.Histogram
4.Box Plot
5.Interval Plot
6.Line Plot
7.Time Series Plot
8.Bar Chart
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Individual Value Plot
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.An individual value plot works best when the sample size is less than approximately 50.
2.Like a boxplot, an individual value plot helps you to identify possible outliers and visualize the distribution of
your data.
3.An individual value plot displays each value separately.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on : one Y variable with groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.Open the sample data,BilliardBallElasticity.MTW.
2.ChooseGraph>Individual Value Plot>One Y>With
Groups.
3.InGraph variables, enterElastic.
4.InCategorical variables for grouping (1-4, outermost
first), enterAdditive.
5.ClickOK.
Interpret the results
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on : multiple Y variables
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
A company that makes plastic pipes is concerned about the consistency of the pipe diameters. The engineer
measures 10 pipes a weekfor three weeks from each of two machines.
1.Open the sample data,PipeDiameter.MTW.
2.ChooseGraph>Individual Value Plot>Multiple Y’s>Simple.
3.InGraph variables, enterWeek 1,Week 2, andWeek 3.ClickOK.
Interpret the results
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Dot Plot
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.Open the sample data,BilliardBallElasticity.MTW.
2.ChooseGraph>Dotplot>One Y>With Groups.
3.InGraph variables, enterElastic.
4.InCategorical variables for grouping (1-4, outermost
first), enterAdditive.
5.ClickOK.
Achemicalengineerassessesthequalityoftheplasticthatisusedinmanufacturingbilliardballs.Because
higherelasticityisbetter,theengineerwantstodeterminewhethereitheroftwoadditivesimprovesthe
elasticityoftheplastic.Theengineerprepares10sampleswitheachofthetwoadditivesand10sampleswith
noadditiveandmeasurestheelasticityofeach.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.OneY:Simple
2.OneY:WithGroups
3.OneY:StackGroups
4.MultipleY’s:Simple
5.MultipleY’s:StackY’s
6.MultipleY’s:WithGroups
7.MultipleY’s:StackGroups
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on : One Y: Simple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Createadotplotthatdisplaysthedistributionofvaluesforonevariable.
Theworksheetmustincludeonecolumnofnumericordate/timedata.
Graph>Dotplot>OneY>Simple
C1
Calcium
646.72
1120.67
1067.25
...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on : One Y: With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Dotplot>One Y>With Groups
Complete the following steps to specify the data for your graph.
1.InGraph variables, enter one or more columns that you want to graph.By default,
Minitab creates a separate graph for each variable.
2.InCategorical variables for grouping (1-4, outermost first), enter up to four
columns of categorical data that defines the groups.
C1 C2
Calcium Group
646.72Control
1120.67Education
1067.25Control
......
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on : One Y: Stack Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Dotplot>One Y>Stack Groups
Complete the following steps to specify the data for your graph.
1.InGraph variables, enter one or more columns that you want to
graph.By default, Minitab creates a separate graph for each variable.
2.InCategorical variables for grouping (1-4, outermost first), enter up
to four columns of categorical data that defines the groups.
C1 C2
Calcium Group
646.72Control
1120.67Education
1067.25Control
......
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on : Multiple Y’s: Simple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Dotplot>Multiple Y’s>Simple
InGraph variables, enter multiple columns that you want to graph. Minitab creates a separate panel
on the graph for each variable.
C1 C2 C3
Week 1 Week 2 Week 3
5.10 5.57 8.73
5.53 5.11 5.01
4.78 5.76 7.59
... ... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on:MultipleY’s:StackY’s
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
C1 C2 C3
Week 1 Week 2 Week 3
5.10 5.57 8.73
5.53 5.11 5.01
4.78 5.76 7.59
... ... ...
Graph>Dotplot>Multiple Y’s>Stack Y’s
Complete the following steps to specify the data for your graph.
1.InGraph variables, enter multiple columns that you want to graph.
2.SelectStack dots of graph variables.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on:MultipleY’s:WithGroups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Dotplot>Multiple Y’s>With Groups
1.InGraph variables, enter multiple columns of numeric or date/time data that you want to graph.
2.InCategorical variables for grouping (1-3, outermost first), enter up to three columns of categorical data that
define the groups.The first variable is the outermost on the scale and the last variable is the innermost.
3.UnderScale Level for Graph Variables, select one of the following:
1.Graph variables displayed outermost on scale: Graph variables are the outermost groups and the
categorical variables are the innermost groups. On the graph below, graph variables are outermost on the
scale.
2.Graph variables displayed innermost on scale: Graph variables are the innermost groups and the
categorical variables are the outermost groups.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on:MultipleY’s:WithGroups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
C1 C2 C3 C4
Week 1 Week 2 Week 3 Machine
5.10 5.57 8.73 1
5.53 5.11 5.01 2
4.78 5.76 7.59 1
... ... ... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on:MultipleY’s:StackGroups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Dotplot>Multiple Y’s>Stack Groups
1.InGraph variables, enter multiple columns of numeric or date/time data that you want to graph.
2.InCategorical variables for grouping (1-3, outermost first), enter up to three columns of categorical data
that define the groups.The first variable is the outermost on the scale and the last variable is the innermost.
3.UnderScale Level for Graph Variables, select one of the following:
1.Graph variables displayed outermost on scale: Graph variables are the outermost groups and the
categorical variables are the innermost groups. On the graph below, graph variables are outermost on
the scale.
2.Graph variables displayed innermost on scale: Graph variables are the innermost groups and the
categorical variables are the outermost groups. Values in the innermost level are represented by
different colors and symbols.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on:MultipleY’s:StackGroups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
C1 C2 C3 C4
Week 1 Week 2 Week 3 Machine
5.10 5.57 8.73 1
5.53 5.11 5.01 2
4.78 5.76 7.59 1
... ... ... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Histogram
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Ahistogramisanaccuraterepresentation
ofthedistributionofnumericaldata.Itisan
estimateoftheprobabilitydistributionofa
continuousvariable
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Simple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Aqualitycontrolengineerneedstoensurethatthecapsonshampoobottlesarefastenedcorrectly.Ifthecaps
arefastenedtooloosely,theymayfalloffduringshipping.Iftheyarefastenedtootightly,theymaybetoodifficult
toremove.Thetargettorquevalueforfasteningthecapsis18.Theengineercollectsarandomsampleof68
bottlesandteststheamountoftorquethatisneededtoremovethecaps.
1.Open the sample data,CapTorque.MTW.
2.ChooseGraph>Histogram>Simple.
3.InGraph variables, enterTorque.
4.ClickOK.
Interpret the results
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: WithFit
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Histogram>With Fit
InGraph variables, enter one or more numeric or date/time columns that you want to graph. By
default, Minitab creates a separate graph for each variable.
C1
Torque
22
18
31
...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Complete the following steps if your groups are defined by values in a grouping variable, or unique
combinations of values in multiple grouping variables.
1.InGraph variables, enter the numeric or date/time column that you want to graph.
2.InCategorical variables for grouping (0-3), enter up to three columns that define the groups.
C1 C2
Torque Machine
22 1
18 1
31 2
... ..
Groups are defined by values in categorical variables
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Groups are graph variables
1.InGraph variables, enter multiple numeric or date/time columns that you want to graph.
2.SelectGraph variables form groups.
C1 C2
Machine 1 Machine 2
14 24
18 27
27 17
... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Fit and Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Groups are defined by values in categorical variable
1.InGraph variables, enter the numeric or date/time column that you want to graph.
2.InCategorical variables for grouping (0-3), enter up to three columns that define the groups.
C1 C2
Torque Machine
22 1
18 1
31 2
... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Fit and Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Groups are graph variables
1.InGraph variables, enter multiple numeric or date/time columns that you want to graph.
2.SelectGraph variables form groups.
C1 C2
Machine 1 Machine 2
14 24
18 27
27 17
... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Box Plot
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Boxplottoassessandcomparetheshape,centraltendency,andvariabilityofsampledistributions,andto
lookforoutliers.Aboxplotworksbestwhenthesamplesizeisatleast20.Bydefault,aboxplotshowsthe
median,interquartilerange,range,andoutliersforeachgroup.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Aplantfertilizermanufacturerwantstodevelopaformulaoffertilizerthatyieldsthemostincreaseinthe
heightofplants.Totestfertilizerformulas,ascientistpreparesthreegroupsof50identicalseedlings:a
controlgroupwithnofertilizer,agroupwiththemanufacturer'sfertilizer,namedGrowFast,andagroup
withfertilizernamedSuperPlantfromacompetingmanufacturer.Aftertheplantsareinacontrolled
greenhouseenvironmentforthreemonths,thescientistmeasurestheplants'heights.
1.Open the sample data,PlantGrowth.MTW.
2.ChooseGraph>Boxplot>One Y>With Groups.
3.InGraph variables, enterHeight.
4.InCategorical variables for grouping (1-4, outermost
first), enterFertilizer.
5.ClickOK.
Interpret the results
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
One Y:Simple
One Y:With Groups
Multiple Y’s:Simple
Multiple Y’s:With Groups
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: One Y:Simple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
A boxplot that displays the distribution of values for one variable. The worksheet must include at
least one column of numeric or date/time data.
C1
Height
22
26
19
...
Graph>Boxplot>One Y>Simple
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: One Y:With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Aboxplotthatdisplaysthedistributionsofvaluesfordifferentgroups.Theworksheetmustincludeatleast
onecolumnofnumericordate/timedataandatleastonecolumnofcategoricaldata.Groupsaredefinedby
valuesinthecategoricalvariable,orbyuniquecombinationsofvaluesinmultiplecategoricalvariables.
Graph>Boxplot>One Y>With Groups
C1 C2-T
Height Fertilizer
22None
26GrowFast
19SuperPlant
......
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Multiple Y’s:Simple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
A boxplot that displays the distribution of values for different groups. The worksheet must include multiple
columns of numeric or date/time data. Each column is a group.
C1 C2 C3
Week 1 Week 2 Week 3
5.19 5.57 8.73
5.53 5.11 5.01
4.78 5.76 7.59
... ... ...
Graph>Boxplot>Multiple Y’s>Simple
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Interval Plot
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
IntervalPlottoassessandcompareconfidenceintervalsofthemeansofgroups.Anintervalplotshowsa
95%confidenceintervalforthemeanofeachgroup.Anintervalplotworksbestwhenthesamplesizeisat
least10foreachgroup.Usually,thelargerthesamplesize,thesmallerandmoreprecisetheconfidence
interval.
To create an interval plot, choose one of the following:
1.Graph>Interval Plot
2.Stat>ANOVA>Interval Plot
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Aplantfertilizermanufacturerwantstodevelopaformulaoffertilizerthatyieldsthemostincreaseintheheight
ofplants.Totestfertilizerformulas,ascientistpreparesthreegroupsof50identicalseedlings:acontrolgroup
withnofertilizer,agroupwiththemanufacturer'sfertilizer,namedGrowFast,andagroupwithfertilizer
namedSuperPlantfromacompetingmanufacturer.Aftertheplantsareinacontrolledgreenhouseenvironment
forthreemonths,thescientistmeasurestheplants'heights.
1.Open the sample data,PlantGrowth.MTW.
2.Choose one of the following:
1.Graph>Interval Plot>One Y>With Groups
2.Stat>ANOVA>Interval Plot>One Y>With Groups
3.InGraph variables, enterHeight.
4.InCategorical variables for grouping (1-4, outermost first),
enterFertilizer.
5.ClickOK.
Interpret the results
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.One Y:Simple
2.One Y:With Groups
3.Multiple Y’s:Simple
4.Multiple Y’s:With Groups
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: one Y variable
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
An interval plot that displays the confidence interval for the mean of one variable. The worksheet must include at least
one column of numeric or date/time data.
Graph>Interval Plot>One Y>SimpleorStat>ANOVA>Interval Plot>One Y>Simple
C1
Height
22
26
19
...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: One Y:With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
An interval plot that displays the confidence intervals for the means of different groups. The worksheet must include at
least one column of numeric or date/time data and at least one column of categorical data.
Graph>Interval Plot>One Y>With GroupsorStat>ANOVA>Interval Plot>One Y>With Groups
1.InGraph variables, enter one or more columns of numeric or date/time data that you want to graph.By default,
Minitab creates a separate graph for each variable.
1.InCategorical variables for grouping (1-4, outermost first), enter up to four columns of categorical data that define
the groups.The first variable is the outermost on the scale and the last variable is the innermost.
C1 C2 -T
Height Fertilizer
22None
26GrowFast
19SuperPlant
......
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Multiple Y’s:Simple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
An interval plot that displays the confidence intervals for the mean of groups. The worksheet must include multiple
columns of numeric or date/time data. Each column is a group.
C1 C2 C3
Week 1 Week 2 Week 3
5.03 5.71 5.73
5.19 5.37 5.32
4.98 5.26 6.25
... ... ...
Graph>Interval Plot>Multiple Y’s>SimpleorStat>ANOVA>Interval Plot>Multiple Y’s>Simple
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Multiple Y’s:With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
An interval plot that displays the confidence intervals for the means of multiple-level groups. Multiple-level groups are
displayed as clustered confidence intervals.
Graph>Interval Plot>Multiple Y’s>With GroupsorStat>ANOVA>Interval Plot>Multiple Y’s>With Groups
C1 C2 C3 C4
Week 1 Week 2 Week 3 Machine
5.03 5.71 5.73 1
5.19 5.37 5.32 2
4.98 5.26 6.25 1
... ... ... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Multiple Y’s:With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Interval Plot>Multiple Y’s>With GroupsorStat>ANOVA>Interval Plot>Multiple Y’s>With Groups
1.InGraphvariables,entermultiplecolumnsofnumericordate/timedatathatyouwanttograph.
2.InCategoricalvariablesforgrouping(1-3,outermostfirst),enteruptofourcolumnsofcategoricaldata
thatdefinegroups.Thefirstvariableistheoutermostonthescaleandthelastvariableistheinnermost.
3.UnderScaleLevelforGraphVariables,selectoneofthefollowing:
1.Graphvariablesdisplayedoutermostonscale:Graphvariablesaretheoutermostgroupsandthe
categoricalvariablesaretheinnermostgroups.Onthegraphbelow,graphvariablesareoutermoston
thescale.
2.Graphvariablesdisplayedinnermostonscale:Graphvariablesaretheinnermostgroupsandthe
categoricalvariablesaretheoutermostgroups.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Line Plot
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
LinePlottocompareresponsepatternsofafunctionoraseries.Youcancreatealineplotwithsymbolsor
withoutsymbols,dependingonthenumberofgroupsandlengthofseriesthatyouwanttocompare.
Line plot of a function (with symbols) Line plot of a series (without symbols)
A line plot with symbols works best when you have only
a few groups and short response patterns.
lineplotofaserieswithoutsymbolstocomparelong
responsepatternsformultiplegroups,forexample
spectroscopyresults.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Line plot of a function (with symbols)
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
A quality engineer at a textile manufacturer wants to determine the factors that affect the breaking strength of
a synthetic fiber. The engineer samples the output of four production machines and three operators selected
at random.
1.Open the sample data,FiberStrength.MTW.
2.ChooseGraph>Line Plot>With Symbols>One Y.
3.InFunction, selectMean.
4.InGraph variables, enterStrength.
5.InCategorical variable for X-scale grouping, enterOperator.
6.InCategorical variable for legend grouping, enterMachine.
7.ClickOK.
Interpret the results
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Line plot of a series (without symbols)
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
A quality engineer wants to compare chromatogram profiles for samples of gasoline at various octanes. An irregular
profile indicates possible quality problems. The engineer tests samples of nine octane ratings and records the values for
36 different components.
Interpret the results
1.Open the sample data,GasolineFormulations.MTW.
2.ChooseGraph>Line Plot>Without Symbols>Series in Rows or Columns.
3.InGraph variables, enter900-1600.
4.InLabel column (optional), enteroctane.
5.FromSeries Arrangement, selectEach row forms a series.
6.ClickOK.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.With Symbols: One Y
2.With Symbols: Multiple Y’s
3.With Symbols: Series in Rows or Columns
4.Without Symbols: One Y
5.Without Symbols: Multiple Y’s
6.Without Symbols: Series in Rows or Columns
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Symbols: One Y
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Alineplotthatdisplaysseveralseriesofshortresponsepatterns.Theworksheetmustincludeatleastone
columnofnumericordate/timedataandtwocolumnsofcategoricaldata.Seriesaredefinedbyvaluesina
categoricalvariable.
C1 C2 C3
Machine Operator Strength
1 1 109
1 1 110
2 1 110
... .... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Symbols: One Y
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Line Plot>With Symbols>One Y
Complete the following steps to specify the data for your graph.
1.FromFunction, select the function of the data that you want to graph.
2.InGraph variables, enter one or more columns of numeric or date/time data that you want to
graph.By default, Minitab creates a separate graph for each variable.
3.InCategorical variable for X-scale grouping, enter the column of categorical data that
defines the groups on the X-scale.
4.InCategorical variable for legend grouping, enter the column of categorical data that defines
the series, identified on the legend.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Symbols:Multiple Y’s
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Alineplotthatdisplaysseveralseriesofshortresponsepatterns.Theworksheetmustincludeseveralcolumnsof
numericordate/timedataonecolumnofcategoricaldata.Seriesaredefinedbyseparatecolumnsorbyvaluesinthe
categoricalvariable.
C1 C2 C3 C4
Week 1 Week 2 Week 3Machine
5.19 5.57 8.73 1
5.53 5.11 5.01 2
4.78 5.76 7.59 1
... ... ... ...
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: With Symbols:Multiple Y’s
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Line Plot>With Symbols>Multiple Y’s
Complete the following steps to specify the data for your graph.
1.FromFunction, select the function of the data that you want to graph.
2.InGraph variables, enter multiple columns of numeric or date/time data that you want to graph.
3.InCategorical variable for grouping, enter the column of categorical data that defines groups.
4.FromGrouping by Graph Variables, select one of the following:
1.Graph variables are X-scale groups: Graph variables are the groups on the X-scale. On the
graph below, graph variables are the X-scale groups.
2.Graph variables are legend groups: Graph variables are the series, identified on the legend
and the categorical variable defines the X-scale groups.
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Hands-on: With Symbols:Series in Rows or Columns
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Alineplotthatdisplaysseveralseriesofshortresponsepatterns.Theworksheetmustincludeseveral
columnsofnumericordate/timedata.Theworksheetcancontainonecolumnofcategoricaldata.Dataare
inatwo-waytablewhereeachcellcontainsasummarizedvalueforthecolumn/rowcombination
C1-T C2 C3 C4 C5 C6 C7
Quarter Damaged
Liner
Damaged
Sidewall
Leak from
Seating
Puncture Valve Core
Leak
Valve Stem
Leak
Q1 25 53 29 73 63 109
Q2 34 63 35 94 43 103
Q3 50 39 19 158 35 98
Q4 23 54 17 89 43 87
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Hands-on: With Symbols:Series in Rows or Columns
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Line Plot>With Symbols>Series in Rows or Columns
1.InGraph variables, enter multiple columns of numeric or date/time data that you want to graph.
2.InLabel column (optional), enter the column of categorical data with labels for the series.If you don't enter
a label column, Minitab labels the groups formed by the rows with the row number.
3.FromSeries Arrangement, select one of the following:
1.Each row forms a series: Rows form the series. The rows are labeled with the values in the label
column.
2.Each column forms a series: Graph variables form the series. On the graph below, the columns in
the worksheet are the graph variables for the series.
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Hands-on: With Symbols:Series in Rows or Columns
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
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Hands-on: Without Symbols:One Y
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Alineplotthatdisplaysmultipleseriesoflongresponsepatterns.Theworksheetmustatleastonecolumn
ofnumericordate/timedataonecolumnandtwocolumnsofcategoricaldata.Seriesaredefinedbyvalues
inacategoricalvariable.
C1 C2 C3
Wavelength Measurement Sample
1 -0.023460 1
1 0.004122 2
1 -0.000544 3
... ... ...
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Hands-on: Without Symbols:One Y
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Line Plot>Without Symbols>One Y
Complete the following steps to specify the data for your graph.
1.FromFunction,selectthefunctionofthedatathatyouwanttograph.
2.InGraphvariables,enteroneormorecolumnsofnumericordate/timedatathatyouwantto
graph.Bydefault,Minitabcreatesaseparategraphforeachvariable.
3.InCategoricalvariableforX-scalegrouping,enterthecolumnofcategoricaldatathatdefines
thegroupsontheX-scale.Usually,thisvariablehasmultipleuniquevalues.
4.InCategoricalvariableforlegendgrouping,enterthecolumnofcategoricaldatathatdefines
theseries,identifiedonthelegend.
MINITAB@18
LEAN SIX SIGMA BLACK BELT
Hands-on: Without Symbols:Series in Rows or Columns
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Alineplotthatdisplaysmultipleseriesoflongresponsepatterns.Theworksheetmustincludemultiplecolumnsof
numericordate/timedataonecolumnofcategoricaldata.Dataareinatwo-waytablewhereeachcellcontainsa
summarizedvalueforthecolumn/rowcombination.Seriesaredefinedbyseparatecolumnsorbyseparaterows.
C1 C2 C3 ... C37
900 920 940 ... octane
0.2137510.2361620.211233 ... 84.9
0.2218430.2415140.216588 ... 91.7
0.2208930.2411530.215574 ... 91.2
... ... ... ... ...
MINITAB@18
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Hands-on: Without Symbols:Series in Rows or Columns
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>Line Plot>Without Symbols>Series in Rows or Columns
Complete the following steps to specify the data for your graph.
1.InGraph variables, enter multiple columns of numeric or date/time data that you want to graph.
2.InLabel column (optional), enter one column of categorical data with labels for the series.If you don't
enter a label column, Minitab labels the groups formed by the rows with the row number.
3.UnderSeries Arrangement, select one of the following:
1.Each row forms a series: Rows form the series. The rows are labeled with the values in the label
column. On the graph below, rows forms the series.
2.Each column forms a series: Graph variables form the series. On the graph below, the columns
in the worksheet are the graph variables for the series.
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Time Series Plot
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
TimeSeriesPlottolookforpatternsinyourdataovertime,suchastrendsorseasonalpatterns.Atime
seriesplotcanhelpyouchooseatimeseriesanalysistomodelyourdata.
To create a time series plot, choose one of the following
1.Graph>Time Series Plot
2.Stat>Time Series>Time Series Plot
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Hands-on:
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Astockbrokercomparesthemonthlyperformanceoftwostocksduringthepasttwoyears.Thestock
brokercreatesatimeseriesplottovisualizetheperformanceofthetwostocks.
1.Open the sample data,StockPrice.MTW.
2.ChooseGraph>Time Series Plot>MultipleorStat>Time Series>Time Series Plot>Multiple.
3.InSeries, enter 'Company A' and 'Company B'.
4.ClickTime/Scale.
5.UnderTime Scale, selectCalendar, and then selectMonth.
6.ClickOKin each dialog box.
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Hands-on:
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
1.Simple
2.With Groups
3.Multiple
4.Multiple with Groups
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Hands-on: Simple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Atimeseriesplotthatdisplaystime-orderedvaluesforonevariable.Theworksheetmustincludeatleastone
columnofaseriesofnumericordate/timedata.
C1
Process
50
46
45
...
Graph>Time Series Plot>SimpleorStat>Time Series>Time Series Plot>Simple
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Hands-on: With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Atimeseriesplotthatdisplaystime-orderedvaluesforconsecutivegroups.Thisoptionishelpfulfor
representingtimeseriesdatainseparatestagesoftime.Theworksheetmustincludeatleastonecolumnof
aseriesofnumericordate/timedata,andatleastonecorrespondingcolumnofcategoricaldata.Groups
aredefinedbyvaluesinthecategoricalcolumn.
C1 C2 C3-T
Calls Stage Date labels
428 1Mar 23
1042 1Mar 24
... ......
1462 2Apr 7
1032 2Apr 8
... ......
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Hands-on: With Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>TimeSeriesPlot>WithGroupsorStat>TimeSeries>TimeSeriesPlot>WithGroups
Completethefollowingstepstospecifythedataforyourgraph.
1.InSeries,enteroneormorecolumnsoftime-orderednumericordate/timedatathatyouwantto
graph.Bydefault,Minitabcreatesaseparategraphforeachvariable.
2.InCategoricalvariablesforgrouping(1-3),enteruptothreecolumnsofcategoricaldatathat
definethegroups.
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Hands-on: Multiple
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>TimeSeriesPlot>MultipleorStat>TimeSeries>TimeSeriesPlot>Multiple
Specifythedataforyourgraph.InSeries,entermultiplecolumnsoftime-orderednumericordate/time
datathatyouwanttograph.
C1 C2
Process 1 Process 2
50 32
46 31
45 30
... ...
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Hands-on: Multiple with Groups
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Graph>TimeSeriesPlot>MultiplewithGroupsorStat>TimeSeries>TimeSeriesPlot>Multiplewith
Groups
Completethefollowingstepstospecifythedataforyourgraph.
1.InSeries,entermultiplecolumnsoftime-orderednumericordate/timedatathatyouwanttoappearon
theplot.
2.InCategoricalvariablesforgrouping(1-3),enteruptothreecolumnsofcategoricaldatathatdefine
thegroups.
C1 C2 C3 C4-T
Center 1 Center 2 Stage Date labels
281 147 1Mar 23
688 354 1Mar 24
... ......
687 775 2Apr 7
717 315 2Apr 8
... ......
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Bar Charts
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
ChooseGraph>BarChart,thenselectabarchartbasedonyourdataandhowyouwantthegraphto
look.
I. Counts of unique values:
•Simple
•Cluster
•Stack
II. A function of a variable One
•Y:Simple
•Y:Cluster
•Y:Stack
III. A function of a variable:Multiple
•Y’s:Simple
•Y’s:Cluster
•Y’s:Stack
IV. Values from a table:One column of values:
•Simple
•Cluster
•Stack
Values from a table:Two-way table:
•Cluster
•Stack
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Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Category:Automotivesupply-CountsofUniqueValuesinaCategoricalVaribale
Problem:Cardoorpanelsthatarerejected
Reason:Paintflaws
Target:Tocreatesabarcharttocomparethecountsofpaintflaws.
1.Open the sample data,PaintFlaws.MTW.
2.Open the dialog box.
1.ChooseGraphs>Bar Chart>Counts of unique values >Simple.
3.InCategorical variable, enterFlaws.
4.ClickOK.
Interpret the results
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Hands-on
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY
Category:OscilloscopeTube
Task :Tocreatesabarcharttocomparethelightoutputofvariouscombinationsoftemperatureandglasstype.
1.Open the sample data,LightOutput.MTW.
2.Open the dialog box.
1.Mac: ChooseGraphs>Bar Chart>Mean or other function of
a continuous variable>Single Y variable: Clustered.
2.PC: ChooseGRAPHS>Bar Chart>Function of a
variable>Single Y Variable: Clustered.
3.InFunction, selectMean.
4.InContinuous variable, enterLightOutput.
5.InCategorical variables, enterTemperatureandGlassType.
6.ClickOK.
Interpret the results
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THANK YOU..!
MINITAB@18
LEAN SIX SIGMA BLACK BELT
RAMAR BOSE(Ph.D)
AU TVS Centre for Quality Management , ANNA UNIVERSITY