Problems of Usual Weighted Analysis of Variance (wanova) in Randomized Block Design (rbd) with More than One Observations per Cell When Error Variances Vary from Cell to Cell
نویسندگان
چکیده
Simple heteroscedasticity is discussed in detail by Sen (1984), Sen & Ponnuswamy (1991) and Rahaman and Sen (1995). In this paper, heteroscedasticity is considered in a RBD assuming error variances vary from cell to cell. There are more than one observations per cell in this layout. The twoway general heteroscedastic model is considered here with interaction. On the assumption that the unequal error variances are known, WANOVA are derived using usual weighted least square methd. This method has some arbitrariness and problems such as:
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