Among the key activities of managing an organisation is to be able to make timely and correct decisions. Making the right decision is necessary to ensure the organisation's competitiveness [Lestyanszka 2014a]. Organisations are trying to reduce production costs as much as possible, but this, on the other hand, brings negatives in the form of products that do not meet customer expectations. This phenomenon, however, has other downstream processes that burden the organisation and make it more difficult to continue its activities. These are customer complaints, the cost of eliminating the claimed defects, downtime, etc. [Lestyanszka 2014b, Husain 2021]. Therefore, the successful functioning of any organisation depends on its ability to adapt to changing customer requirements, as these are a priority in the market [Szander 2014, McDonnell 2013]. An effective tool for quality improvement is statistical methods and tools, which are not only advisable but essential to be implemented in production processes. Without systematic quality management, an organisation cannot grow, as it has to combine enormous efforts in developing and introducing new products with maximum quality maintenance of the already established ones.
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