In: Math
What is the equipment variation as a percent of process variation using ANOVA
Part Appraiser Trial
Measurement
1 1 1 12.369
1 1 2 11.957
1 2 1 12.915
1 2 2 13.065
1 3 1 13.894
1 3 2 13.86
1 4 1 15.055
1 4 2 15.081
2 1 1 18.26
2 1 2 18.271
2 2 1 19.068
2 2 2 19.089
2 3 1 20.197
2 3 2 20.176
2 4 1 20.665
2 4 2 20.553
3 1 1 19.607
3 1 2 19.749
3 2 1 20.478
3 2 2 20.374
3 3 1 20.402
3 3 2 20.454
3 4 1 22.133
3 4 2 22.405
4 1 1 26.056
4 1 2 25.813
4 2 1 26.895
4 2 2 26.921
4 3 1 28.991
4 3 2 28.981
4 4 1 30.695
4 4 2 30.872
5 1 1 28.498
5 1 2 28.723
5 2 1 31.671
5 2 2 31.678
5 3 1 33.357
5 3 2 33.385
5 4 1 34.607
5 4 2 34.511
6 1 1 37.184
6 1 2 37.029
6 2 1 37.806
6 2 2 37.809
6 3 1 38.379
6 3 2 38.493
6 4 1 39.25
6 4 2 38.848
Step1) Find average for each trial for each appraiser
2) Average and range for each part
3) Determine average of all range()
4) EV = K1 * ()
K1 is a constant. For 2 trials K1 is 0.8862