Table 3. One sample t tests to determine whether the angulation deviation in pitch, roll and yaw from the three operators were different to 0°.
| Mean | SD | t | p-value | 95% Confidence Interval of the Difference | ||
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Pitch | ||||||
| Operator 1 | -.00294015 | .019512315 | -1.055 | .297 | -.00854475 | .00266444 |
| Operator 2 | .00207038 | .036709703 | .169 | .870 | -.02614719 | .03028796 |
| Operator 3 | .01392989 | .024248715 | 1.723 | .123 | -.00470932 | .03256911 |
| Roll | ||||||
| Operator 1 | .00681882 | .094297369 | .506 | .615 | -.02026655 | .03390418 |
| Operator 2 | -.05096862 | .090015324 | -1.699 | .128 | -.12016052 | .01822328 |
| Operator 3 | .01384396 | .074443402 | .558 | .592 | -.04337830 | .07106622 |
| Yaw | ||||||
| Operator 1 | .00938994 | .035251689 | 1.865 | .068 | -.00073553 | .01951541 |
| Operator 2 | -.05269350 | .042265340 | -3.740 | .006 | -.08518152 | -.02020549 |
| Operator 3 | .00157049 | .044599621 | .106 | .918 | -.03271182 | .03585279 |
Significant different was found for operator 2 in yaw.