PENGENDALIAN MUTU BERAT PRODUKSI PT. SEMEN PADANG MENGGUNAKAN BAGAN KENDALI MEDIAN ABSOLUTE DEVIATION (MAD) PADA DATA TIDAK NORMAL

Authors

  • Nur Elvi Sahra
  • Hazmira Yozza
  • Yudiantri Asdi

DOI:

https://doi.org/10.25077/jmu.3.1.123-131.2014

Abstract

Suatu perusahaan akan menghasilkan produk yang baik, jika dilakukan
dengan proses yang baik pula. Selain proses pembuatan produk itu sendiri perusahaan
juga harus melakukan pengendalian kualitas setiap prosesnya. Bagan kendali Shewhart
X dan bagan kendali s merupakan salah satu teknik yang paling banyak digunakan dalam
proses pengendalian kualitas. Bagan kendali ini dikembangkan dengan mengasumsikan
bahwa karakteristik kualitas menyebar menurut sebaran normal, sehingga jika tidak
menyebar menurut sebaran normal maka bagan kendali X dan s tidak bisa digunakan
dengan baik. Salah satu bagan kendali yang menjadi alternatif untuk bagan kendali X
dan s jika data tidak menyebar secara normal adalah bagan kendali Median Absolute
Deviation (MAD). Abu-Shawiesh memandang MAD sebagai penduga yang kekar dari
simpangan baku ketika data sampel yang tidak normal dan kemudian mengembangkan
bagan kendali MAD untuk pemantauan variabilitas proses.

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Published

01-03-2014

Issue

Vol. 3 No. 1 (2014)

Section

Articles

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