회귀분석 방법만으로는 협업생산의 특성을 분석하기 어렵고, 특히 평균 생산성 분석에서 신뢰성을 확보하기 어렵다.
It is difficult to analyze the characteristics of collaborative production using the regression analysis method alone, and in particular, it is difficult to secure reliability in average productivity analysis.