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العنوان
Estimating parameters in some ANCOVA Models with non- normal error distributions /
الناشر
Mohamed Abdirahman Omar ,
المؤلف
Mohamed Abdirahman Omar
تاريخ النشر
2014
عدد الصفحات
98 P. ;
الفهرس
Only 14 pages are availabe for public view

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Abstract

According to the results of the simulation study the following points will be introduced: 1) The model (3.14) just valid for and 2 while model (3.1) is valid for any positive integer of . 2) For , and the estimates of the parameters of model (3.1) is better than those of model (3.14), compared to three different values for. 3) For , and the estimates of the parameters of model (3.1) is better than those of model (3.14), compared to three different values for . 4) For , and the estimates of the parameters of model (3.14) is better than those of model (3.1), compared to three different values for . 5) As sample size increase the Bias of the estimates of model (3.14) is better than model (3.1), while the MSE of the estimates of model (3.1) has better than model (3.14). 6) In model (3.14) the maximum value of r is 2, so in all cases the value of Bias and MSE for r=4 not applicable.