- select a rectangle of text in the session window
Alt + left mouse button
- switch to next window
Ctrl+F6
- tile displayed graphs
Window>Manage Graphs>Tile
- to select several columns
use Shift + left mouse button and then click on the select button
- to stack data
Editor>Insert Columns
add 2 columns
Manip>Stack/Unstack>Stack Colums
indicate the columns to stack, the column recording the stacked data
and the column receiving the indices
- if Minitab believes that a column is text instead of numeric
Manip > Change data type > Text to Numeric and replace the column
by itself
- display statistics
Stat>Basic Statistics>Display Descriptive
Statistics>Graph...>Graphical
summary
- display a dotplot
Graph>Dotplot
- display a histogram
Graph>Histogram
- display a multi-vari chart
Stat>Quality Tools>Multi-Vari Chart
- display a boxplot (impact of a variable on another one)
Graph>Boxplot
to transpose
...>Options>Transpose X and Y
- compute the defect opportunities
Stat>Quality tools>Capability Analysis (Normal)
and see Observed Performance values
- display a run chart (to see measurement stability)
Stat>Quality Tools>Run Chart
- display a Pareto chart
Stat>Quality>Pareto Chart
- compute the Z given number of units, number of
opportunities and
number
of defects
Six Sigma>Product Report
- perform linear regression
Stat > Regression > Regression
- quick visual way to see if the data is normal
Graph>Normality Plot
if necessary, use By Variable to differentiate several populations
- perform a Chi Square test
Stat>Tables>Chi Square test
- to compute the between, within and total sum of squares
Stat>ANOVA>One-Way
- to compare two continuous distribution
Stat>ANOVA>Homogeneity of Variance
look at F-test is data is normal
look at Levene's test if data is not normal
- display the effect of variables
Stats > ANOVA > Main Effects Plot
- ANOVA study (gage R&R)
Stat>Quality Tools>Gage R&R Study
check that the method is ANOVA
define the tolerance in Options
DF degree of freedom
SS square sum
MS mean square
F F-test
P pi value
total variation = gage R&R + part-to-part variation
Gage R&R = repeatability + reproducibility
first graph = Xbar chart for the 4th rule of thumb
Range chart by operator: the max range for each operator and each part
Components of variation
Last update: November 25th,
2003 - Laurent