표 4. | Table 4. 비교숙련도 전도성 방출 전류법 Z’-Score 분석 | Z’-Score analysis of comparative proficiency in conducted emission current method.

Z’-Score	Description (Severity level)	Average probability within the specified range
<|2|	Normal range (Low)	95.4 %
<|3|	Caution advised (Moderate)	99.9 %
<|4|	Warning required (High)	100.0 %
>|4|	Critical condition (Extreme)	0 %