표 11. | Table 11. 포먼트궤적길이 평균 및 통계 비교 | Comparison of mean formant trajectory length (FTL) and statistical results

FTL (Hz)	M_L	CV_L	M_N	CV_N	CV ratio	U-test	p-value	CV ratio ≥1.2
i	255.8	0.681	281.1	0.625	1.09	8,609	0.139
e	270.8	0.64	219.1	0.623	1.03	11,539	0.003**
ɛ	288.9	0.496	290.6	0.555	0.89	4,550	0.652
a	212.6	0.424	233.7	0.571	0.74	9,549	0.803
u	161.4	0.556	262	0.561	0.99	5,517	0.000***
o	145.5	0.599	171.4	0.593	1.01	8,055	0.018*
ɔ	168.6	0.406	216.8	0.46	0.88	6,957	0.000***
y	191.1	0.563	128	0.651	0.86	13,649	0.000***
ø	137.4	0.465	128	0.375	1.24	10,171	0.510	√
œ	164.9	0.545	175.9	0.637	0.86	9,371	0.665

p<.05,
p<.01,
p<.001.