أثر معالجة القيم الشاذة على تحقق افتراضات تحليل الانحدار الخطي البسيط

Abstract EN

The study aimed at studying the effect of treatment outliers on the verification of assumptions of simple linear regression analysis.

The study sample consisted of (15) master's thesis whose data contain outliers.

A series of tests were used to verify the assumptions of Simple linear regression analysis: Test of lack of fit, Homogeneity of variance, independence of residuals, and normal distribution, Tukey method was used to detect outliers.

Trimmed Mean was used to treat outliers.

The results of the study showed that the existence of outliers violates the verification of the assumptions of Simple linear regression analysis, The results of the study showed that handling of outliers leads to the verification of the assumptions of Simple linear regression analysis.