Statistical Quality Control untuk Mengidentifikasi Persentase Rumah Tangga yang Memiliki Akses terhadap Sumber Air Minum yang Layak di Provinsi Sumatera Utara

Abstract

Water is a basic need that cannot be separated from human life. Quality (decent) drinking water is protected drinking water including tap water (taps), public taps, public hydrants, water terminals, rainwater reservoirs (PAH) or protected springs and wells, drilled wells or pumping wells, which are a minimum distance of 10 m from sewage, waste collection and garbage disposal. The purpose of this study is to identify the proportion of households that have access to adequate drinking water sources in 2014-2021 whether they are within the control limits or not and to identify areas that require increased access to adequate drinking water sources. The data used is secondary data obtained from the Central Statistics Agency of North Sumatra Province. In this study the method used is the Statistical Quality Control (SQC) method. The results of the control chart mean that the Central value is 58.15, the Upper Control Limit (BKA) is 76.85 and the Lower Control Limit (BKB) is 39.45. The results of the range control chart obtained the Central value of 50.14, the value of the Upper Control Limit (BKA) of 93.46 and the value of the Lower Control Limit (BKB) of 6.82.