Table 1. Summary of statistical test results.

Statistical Test

Variable Mean Value Ratio Correlation Coefficient Std. Deviation of Residuals Peak Value Max Residual  
Criteria L=0.20 r=0.8 (s=0.2) (+/- 20%, +/- 5ms) (Rmax=1.5) # of Tests Meeting Criteria
Front Tiedowns √ x=0.9576 √ r=0.97 √ s=1.1307E-5 √ R=1.3475 5
Wheelchair Acceleration (X) √ x=0.9914 X r=0.7353 √ s=0.001 X* √ R=1.3781 3
Vertical Excursion of Front Caster √ x=1.1888 √ r=0.8444 X s=4.4782 X X R=1.6508 2
Legend: √ – PASSED (statistical test criteria met)
X – FAILED (statistical test criteria not met)
* ­– met peak value criteria (+/- 20%), but outside of time window (+/- 5 ms)