直交表におけるプーリングを伴った誤差分散の推定

抄録

Point estimation of the error variance term in ANOVA for orthogonal arrays is discussed. It is assumed that some error terms are assigned. The procedure which is accompanied with a preliminary test of each effect at some level of significance, and some other procedure of which theoretical features are known are examined. The Monte-Carlo study is taken to estimate the mean square errors of their procedures. It is concluded that the procedure with preliminary test at the level 0.50 has good performance.