Violation of the assumption of homoscedasticity and detection of heteroscedasticity
In this paper, it is assumed that there is a violation of homoskedasticity in a certain classical linear regression model, and we have checked this with certain methods. Model refers to the dependence of savings on income. Proof of the hypothesis was performed by data simulation. The aim of this pap...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Regional Association for Security and crisis management
2020-10-01
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| Series: | Decision Making: Applications in Management and Engineering |
| Subjects: | |
| Online Access: | https://dmame.rabek.org/index.php/dmame/article/view/152 |
| _version_ | 1818944149094662144 |
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| author | Irena Đalić Svetlana Terzić |
| author_facet | Irena Đalić Svetlana Terzić |
| author_sort | Irena Đalić |
| collection | DOAJ |
| description | In this paper, it is assumed that there is a violation of homoskedasticity in a certain classical linear regression model, and we have checked this with certain methods. Model refers to the dependence of savings on income. Proof of the hypothesis was performed by data simulation. The aim of this paper is to develop a methodology for testing a certain model for the presence of heteroskedasticity. We used the graphical method in combination with 4 tests (Goldfeld-Quantum, Glejser, White and Breusch-Pagan). The methodology that was used in this paper showed that the assumption of homoskedasticity was violated and it showed existence of heteroskedasticity. |
| first_indexed | 2024-12-20T07:38:37Z |
| format | Article |
| id | doaj.art-29eb1863fa2f4e089d65c097993f3940 |
| institution | Directory Open Access Journal |
| issn | 2560-6018 2620-0104 |
| language | English |
| last_indexed | 2024-12-20T07:38:37Z |
| publishDate | 2020-10-01 |
| publisher | Regional Association for Security and crisis management |
| record_format | Article |
| series | Decision Making: Applications in Management and Engineering |
| spelling | doaj.art-29eb1863fa2f4e089d65c097993f39402022-12-21T19:48:11ZengRegional Association for Security and crisis managementDecision Making: Applications in Management and Engineering2560-60182620-01042020-10-014111810.31181/dmame2104001d152Violation of the assumption of homoscedasticity and detection of heteroscedasticityIrena Đalić0Svetlana Terzić1University of East Sarajevo, Faculty of Transport and Traffic Engineering, Doboj, Republic of Srpska, Bosnia and HerzegovinaUniversity of East Sarajevo, Faculty of Transport and Traffic Engineering, Doboj, Republic of Srpska, Bosnia and HerzegovinaIn this paper, it is assumed that there is a violation of homoskedasticity in a certain classical linear regression model, and we have checked this with certain methods. Model refers to the dependence of savings on income. Proof of the hypothesis was performed by data simulation. The aim of this paper is to develop a methodology for testing a certain model for the presence of heteroskedasticity. We used the graphical method in combination with 4 tests (Goldfeld-Quantum, Glejser, White and Breusch-Pagan). The methodology that was used in this paper showed that the assumption of homoskedasticity was violated and it showed existence of heteroskedasticity.https://dmame.rabek.org/index.php/dmame/article/view/152economic phenomena; heteroskedasticity; homoskedasticity; random errors |
| spellingShingle | Irena Đalić Svetlana Terzić Violation of the assumption of homoscedasticity and detection of heteroscedasticity Decision Making: Applications in Management and Engineering economic phenomena; heteroskedasticity; homoskedasticity; random errors |
| title | Violation of the assumption of homoscedasticity and detection of heteroscedasticity |
| title_full | Violation of the assumption of homoscedasticity and detection of heteroscedasticity |
| title_fullStr | Violation of the assumption of homoscedasticity and detection of heteroscedasticity |
| title_full_unstemmed | Violation of the assumption of homoscedasticity and detection of heteroscedasticity |
| title_short | Violation of the assumption of homoscedasticity and detection of heteroscedasticity |
| title_sort | violation of the assumption of homoscedasticity and detection of heteroscedasticity |
| topic | economic phenomena; heteroskedasticity; homoskedasticity; random errors |
| url | https://dmame.rabek.org/index.php/dmame/article/view/152 |
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