75 dB AMP I 75 dB AMP II 75 dB AMP III 75 dB AMP V V/I Amplitude Ratio 90 dB AMP I 90 dB AMP II 90 dB AMP III 90 dB AMP V V/I Amplitude Ratio 105 dB AMP I 105 dB AMP II 105 dB AMP III 105 dB AMP V V/I Amplitude Ratio
Group A Mean 1.92 1.83 1.03 1.14 1.22 3.70 2.38 1.81 1.49 0.54 5.35 4.04 2.49 2.38 0.46
SD 1.65 1.30 0.61 0.45 1.42 1.99 2.07 1.58 1.00 0.56 1.41 1.94 1.43 2.10 0.39
Group B Mean 2.31 1.62 0.70 0.91 0.61 3.94 2.43 1.05 1.14 0.30 5.49 3.70 2.07 1.78 0.35
SD 1.42 0.86 0.38 0.45 0.63 1.58 1.69 0.67 0.69 0.13 1.77 2.32 1.16 0.71 0.15
Table 4: Box and whisker plot showing data distribution of wave V/I amplitude ratio at 75 dB.