Tamer Sayed Hussein Ibrahim  <br/><br/>
A Statistical inference for some ANOVA models under  different assumptions of the error term   /  
 الاستدلال الاحصائي لبعض نماذج تحليل التباين  تحت فروض مختلفة للخطأ العشوائي 
Tamer Sayed Hussein Ibrahim ; Supervised Magdy Sayed Mostafa , Ahmed Amin Elsheikh 
 - Cairo :   Tamer Sayed Hussein Ibrahim  ,   2015 
 - 94 Leaves ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Institute of Statistical Studies and Research - Department of Statistics and Econometrics  
<br/><br/> The analysis of variance (anova) is the most popular statistical  method among educational researchers. however, it is well known that the effect  of using an f test when the data are non-normal or heterogeneous is a distortion in  the rates of type i or type ii errors . the literature showed that the comparison of  the means of several samples from populations with unequal variances has been  the subject of much discussion . the combined heterogeneity and non-normality  problem makes the situation more complicated in its application. it is known that a  slight departure from normality has a great effect on power , it is worthwhile to  develop efficient alternatives for dealing with this problem 
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