AAA의 견해에 따라 왜도의 절대값이 3 이하, 첨도의 절대값이 4 이하일 때 정규성을 가지는 것으로 판단하였다.
According to AAA's opinion, when the absolute value of skewness was 3 or less and the absolute value of kurtosis was 4 or less, it was judged to have normality.