Table 4: Mean levelling angle measurements [°]. Confidence intervals in brackets.

Right Levelling Angle Left Levelling Angle
Test 3.37° (0°-15.0°) 3.37° (0°-12.0°)
Control 2.31° (0°-12.0°) 2.36° (0°-11.0°)
p-value 0.0060 (p<0.01) 0.0186 (p<0.05)

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