Table 2.
Paired t test assessing the systematic bias between the WebCeph and AutoCAD (d.f. = 49).
| Paired Variables | Mean Difference | 95% Confidence Interval of the Difference |
t | P | |
|---|---|---|---|---|---|
| Lower | Upper | ||||
| SNA Web Auto - SNA AutoCAD | 0.15 | −0.59 | 0.89 | 0.41 | 0.684 |
| SNA Web Semi - SNA AutoCAD | −0.07 | −0.35 | 0.20 | −0.52 | 0.603 |
| SNB Web Auto - SNB AutoCAD | −1.29 | −1.90 | −0.67 | −4.18 | 0.000∗∗∗ |
| SNB Web Semi - SNB AutoCAD | −0.02 | −0.24 | 0.21 | −0.14 | 0.892 |
| ANB Web Auto - ANB AutoCAD | 1.45 | 1.10 | 1.80 | 8.29 | 0.000∗∗∗ |
| ANB Web Semi - ANB AutoCAD | −0.02 | −0.19 | 0.16 | −0.17 | 0.865 |
| SN-MP Web Auto - SN-MP AutoCAD | 0.99 | 0.13 | 1.86 | 2.31 | 0.025∗ |
| SN-MP Web Semi - SN-MP AutoCAD | −0.49 | −0.74 | −0.24 | −3.90 | 0.000∗∗∗ |
| U1-MaxP Web Auto - U1-MaxP AutoCAD | −1.92 | −3.19 | −0.64 | −3.01 | 0.004∗∗ |
| U1-MaxP Web Semi - U1-MaxP AutoCAD | 0.17 | −0.60 | 0.94 | 0.45 | 0.653 |
| L1-MP Web Auto - L1-MP AutoCAD | −7.42 | −10.42 | −4.41 | −4.96 | 0.000∗∗∗ |
| L1-MP Web Semi - L1-MP AutoCAD | −8.42 | −11.88 | −4.96 | −4.89 | 0.000∗∗∗ |
| N–Me Web Auto - N–Me AutoCAD | 2.66 | 1.65 | 3.66 | 5.31 | 0.000∗∗∗ |
| N–Me Web Semi - N–Me AutoCAD | 0.65 | 0.15 | 1.15 | 2.61 | 0.012∗ |
| U1-NPog Web Auto - U1-NPog AutoCAD | 0.11 | −0.30 | 0.52 | 0.55 | 0.588 |
| U1-NPog Web Semi - U1-NPog AutoCAD | −0.06 | −0.35 | 0.24 | −0.38 | 0.705 |
| L1-NPog Web Auto - L1-NPog AutoCAD | −0.00 | −0.31 | 0.30 | −0.02 | 0.985 |
| L1-NPog Web Semi - L1-NPog AutoCAD | −0.31 | −0.44 | −0.19 | −5.07 | 0.000∗∗∗ |
| U Lip-E Line Web Auto - U Lip-E Line AutoCAD | 1.46 | 0.78 | 2.13 | 4.31 | 0.000∗∗∗ |
| U Lip-E Line Web Semi - U Lip-E Line AutoCAD | 0.50 | 0.24 | 0.76 | 3.88 | 0.000∗∗∗ |
| L Lip-E Line Web Auto - L Lip-E Line AutoCAD | −0.24 | −0.91 | 0.43 | −0.72 | 0.475 |
| L Lip-E Line Web Semi - L Lip-E Line AutoCAD | 0.19 | −0.08 | 0.47 | 1.43 | 0.159 |
∗
Significant.
∗∗
Highly significant.
∗∗∗
Very highly significant.