GRR请教

Gage R&R Study - XBar/R Method

%Contribution
Source VarComp (of VarComp)
Total Gage R&R 0.0010174 72.66
Repeatability 0.0010174 72.66
Reproducibility 0.0000000 0.00
Part-To-Part 0.0003829 27.34
Total Variation 0.0014002 100.00


Study Var %Study Var %Tolerance
Source StdDev (SD) (6 * SD) (%SV) (SV/Toler)
Total Gage R&R 0.0318960 0.191376 85.24 31.90
Repeatability 0.0318960 0.191376 85.24 31.90
Reproducibility 0.0000000 0.000000 0.00 0.00
Part-To-Part 0.0195667 0.117400 52.29 19.57
Total Variation 0.0374194 0.224517 100.00 37.42


Number of Distinct Categories = 1


Gage R&R for Result

Tolerance 是：+/-0.3；
我用公式计算％R&R（Tol）是5.3％，为什么用minitab算的是：31.90％；
请大家指教下是什么原因，又该怎么改善？
谢谢！

原始数据是：
"Part

Operator" 1 2 3 4 5 6 7 8 9 10
1 99.93 99.86 99.88 99.91 99.87 99.9 99.88 99.87
99.87 99.88
99.93 99.88 99.88 99.9 99.89 99.89 99.87 99.86
99.93 99.9
99.94 99.9 99.85 99.88 99.88 99.91 99.87 99.88
99.9 99.94
2 99.92 99.88 99.81 99.93 99.85 99.88 99.85 99.85
99.86 99.87
99.94 99.88 99.91 99.89 99.89 99.88 99.85 99.91
99.9 99.85
99.95 99.87 99.9 99.89 99.88 99.91 99.85 99.88
99.9 99.89
3 99.98 99.81 99.78 99.84 99.91 100.03 99.82 99.84
99.89 99.94
99.91 99.85 99.91 99.81 99.91 99.94 99.96 99.81
99.92 99.88
99.85 99.87 99.88 99.91 99.82 99.94 99.89 99.89
99.89 99.86