GR&R ANOVA & X Bar/R 方法差异求解

GR&R ANOVA & X Bar/R 方法差异求解:
GR&R Study 有两种方法:ANOVA&X Bar/R.
同样的数据,计算的结果差异较大.应当如何去理解这种差异?
测试方法:10parts,3 operators,3 times.
Gage R&R Study - XBar/R Method
%Contribution
Source VarComp (of VarComp)
Total Gage R&R 0.0000272 2.67
Repeatability 0.0000155 1.53
Reproducibility 0.0000117 1.15
Part-To-Part 0.0009889 97.33
Total Variation 0.0010161 100.00

Study Var %Study Var
Source StdDev (SD) (6 * SD) (%SV)
Total Gage R&R 0.0052127 0.031276 16.35
Repeatability 0.0039378 0.023627 12.35
Reproducibility 0.0034156 0.020493 10.72
Part-To-Part 0.0314465 0.188679 98.65
Total Variation 0.0318757 0.191254 100.00

Number of Distinct Categories = 8

Gage R&R for respones

Gage R&R Study - ANOVA Method

Two-Way ANOVA Table With Interaction
Source DF SS MS F P
part 9 0.0787778 0.0087531 44.3125 0.000
operator 2 0.0008889 0.0004444 2.2500 0.134
part * operator 18 0.0035556 0.0001975 0.8889 0.593
Repeatability 60 0.0133333 0.0002222
Total 89 0.0965556

Two-Way ANOVA Table Without Interaction
Source DF SS MS F P
part 9 0.0787778 0.0087531 40.4254 0.000
operator 2 0.0008889 0.0004444 2.0526 0.135
Repeatability 78 0.0168889 0.0002165
Total 89 0.0965556

Gage R&R
%Contribution
Source VarComp (of VarComp)
Total Gage R&R 0.0002241 19.11
Repeatability 0.0002165 18.46
Reproducibility 0.0000076 0.65
operator 0.0000076 0.65
Part-To-Part 0.0009485 80.89
Total Variation 0.0011726 100.00

Study Var %Study Var
Source StdDev (SD) (6 * SD) (%SV)
Total Gage R&R 0.0149707 0.089824 43.72
Repeatability 0.0147148 0.088289 42.97
Reproducibility 0.0027563 0.016538 8.05
operator 0.0027563 0.016538 8.05
Part-To-Part 0.0307978 0.184787 89.94
Total Variation 0.0342437 0.205462 100.00

Number of Distinct Categories = 2

Gage R&R for respones