Data sets
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SIXSIGMA.MTW

A brake manufacturer wants to investigate their process. They have collected brake shoe hardness data. This data set is used in creating the various Process Reports.

Column

Name

Count

Description

C1

 

14

Demographic labels

C2

Hardness

14

Demographic information

C3

Measure1

50

First hardness measurement within a subgroup

C4

Measure2

50

Second hardness measurement within a subgroup

C5

Measure3

50

Third hardness measurement within a subgroup

C6

Measure4

50

Fourth hardness measurement within a subgroup

C7

Measure5

50

Fifth hardness measurement within a subgroup

C8

Alldata

250

All hardness measurements by subgroup

C9

Subg

250

Subgroup identification

 

 

 

 

ROLLUP.MTW

A manufacturer wants to investigate their process and generate various benchmark statistics for their product. This data set is used in creating the various Product Reports.

Column

Name

Count

Description

C1

Def

20

Number of defects found

C2

Unit

20

Number of units inspected

C3

Opp

20

Number of opportunities per unit

C4

Cmplx

20

Complexity, the required number of elements for each assembly

C5

Def2

120

Number of defects found for assembly 2

C6

Unit2

120

Number of units inspected for assembly 2

C7

Opp2

120

Number of opportunities per unit for assembly 2

C8

Shift

120

A column of Z.Shift values for the components of assembly 2

BRAKE.MTW

A brake manufacturer wants to establish tolerances for each element in a brake assembly. This data set is used in the Brake Assembly example.

Column

Name

Count

Description

C1

Elements

6

Name of each element in the brake assembly

C2

Means

6

Mean of each element in the brake assembly

C3

Dir Vectors

6

Directional vector of each element in the brake assembly

C4

St Dev

6

Standard deviation of each element in the brake assembly

C5

Cmplx

6

Number required of each element to produce a single brake assembly

C6

Drift

6

Ratio between the long-term and short-term standard deviation for each element

C7

Lowers

6

Lower gap specification

C8

Uppers

6

Upper gap specification

C9

Mean Alloc

6

Allocation weight for the mean pool of each element

C10

Var Alloc

6

Allocation weight for the variance pool of each element