?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PERBANDINGAN+METODE+WEIGHTED+LEAST+SQUARE+DAN+TRANSFORMASI+%0D%0ABOX-COX+UNTUK+MENGATASI+MASALAH+HETEROSKEDASTISITAS&rft.creator=Umroh%2C+1717031032&rft.subject=510+Matematika&rft.description=%0D%0AOne+assumption+violations+in+regresssion+analysis+is+the+non+constant+variance+%0D%0Aacross+observation+which+is+called+heteroscedasticity.+The+consequence+of+the+%0D%0Aheteroscedasticity+problem+is+the+variance+of+the+estimator+%0D%0A%CC%82%0D%0Ais+not+minimum+and+%0D%0Athe+estimator+becomes+inefficient%2C+therefore+an+improvement+is+needed+to+%0D%0Aovercome+this+heteroscedasticity+problem.+The+purpose+of+this+study+was+to+%0D%0Acompare+the+heteroscedasticity+improvement+methods%2C+namely+the+Weighted+Least+%0D%0ASquare+method+and+the+Box-Cox+Transformation+in+regression+analysis.+For+that+%0D%0Ain+this+study%2C+data+simulation+with+1000+replications+and+used+secondary+data+to+%0D%0Acompare+the+smallest+RMSE+results+for+each+method.++Obtained+that+the+Weighted+%0D%0ALeast+Square+method+gave+the+smallest+RMSE+value+on+simulation+data+with+%0D%0Adifferent+sample+sizes+and+with+secondary+data.++Furthermore%2C+it+can+be+concluded+%0D%0Athat+the+Weighted+Least+Square+method+is+the+best+method+in+fixing+the+%0D%0Aheteroscedasticity+problem+in+the+cases+studied+in+this+study.%0D%0AKeywords+%3A+Heteroscedastic%2C+Weighted+Least+Square%2C+Box-Cox+Transformation%0D%0A%0D%0ASalah+satu+pelanggaran+asumsi+dalam+analisis+regresi+adalah+ketidaksamaan+nilai+ragam+dari+%0D%0Asetiap+pengamatan+yang+disebut+heteroskedastisitas.+Konsekuensi+dari+masalah+%0D%0Aheteroskedastisitas+yaitu+ragam+dari+penduga+%0D%0A%CC%82%0D%0Atidak+lagi+minimum+dan+penduga+menjadi+%0D%0Atidak+efisien+oleh+sebab+itu+dibutuhkan+sebuah+perbaikan+untuk+mengatasi+masalah+%0D%0Aheteroskedastisitas+ini.+Tujuan+dari+penelitian+ini+adalah+untuk+membandingkan+metode+%0D%0Aperbaikan+heteroskedastisitas+yaitu+metode+Weighted+Least+Square+dan+Transformasi+BoxCox+pada+analisis+regresi.+Untuk+masalah+itu+maka+pada+penelitian+ini+dilakukan+dengan+%0D%0Asimulasi+data+dengan+1000+kali+replikasi+dan+menggunakan+data+sekunder+untuk+%0D%0Amembandingkan+hasil+RMSE+terkecil+setiap+metode.+Diperoleh+bahwa+metode+Weighted+%0D%0ALeast+Square+memberikan+nilai+RMSE+terkecil+pada+data+simulasi+dengan+ukuran+sempel+%0D%0Aberbeda+maupun+dengan+data+sekunder.+Sehingga+didapatkan+kesimpulan+bahwa+metode+%0D%0AWeighted+Least+Square+merupakan+metode+terbaik+dalam+memperbaiki+masalah+%0D%0Aheteroskedastisitas+pada+kasus-kasus+yang+dikaji+dalam+penelitian+ini.%0D%0AKata+kunci+%3A+Heteroskedastisitas%2C+Weighted+Least+Square%2C+Transformasi+Box-Cox+&rft.publisher=FAKULTAS+MIPA&rft.date=2021&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61272%2F2%2FABSTRACT%2520-%2520Umroh%2520Uum.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61272%2F1%2F1FULL_SKRIPSI-UMROH-FIXX%255B1%255D%2520-%2520Umroh%2520Uum.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61272%2F3%2F1FULL_SKRIPSI-UMROH-FIXX-TANPA_PEMBAHASAN%255B1%255D%2520-%2520Umroh%2520Uum.pdf&rft.identifier=++Umroh%2C+1717031032++(2021)+PERBANDINGAN+METODE+WEIGHTED+LEAST+SQUARE+DAN+TRANSFORMASI+BOX-COX+UNTUK+MENGATASI+MASALAH+HETEROSKEDASTISITAS.++FAKULTAS+MIPA%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F61272%2F