Table 8: Comparison of the best-fit results in μm for centroid vertical gaps generated by the fixed and unfixed coordinate system best-fit matching methods.
(a)

Centroid Z gap data baseFixed castUnfixed castFixed titan.Unfixed titan.

112.15.83.22.0
231.719.38.74.4
312.812.83.93.8
429.917.28.64.8
518.512.14.43.0
61.91.5
72.11.2
80.90.9
91.30.9
102.31.9

(b) Descriptive statistics

CountMeanStd. dev.Std. error

Fixed cast521.009.3064.162
Unfixed cast513.445.2212.335

Fixed titan.103.732.8120.889
Unfixed titan.102.441.4620.462

(c) Paired -test: hypothesized difference = 0

Mean diff.DFt value value

Fixed cast; unfixed cast7.5643.2250.0321
Fixed titan; unfixed titan.1.2992.6710.0256