From your research, can you provide examples of how manufacturing companies have implemented and benefited from robust Quality Assurance $($QA$)$ processes in their production operations? Please focus on demonstrating how these companies have engaged with QA ideas without delving into the specifics of inspection technology, considering that details of inspection technology have already been covered in MEC$304$ Theme $1$ & Technology Report. Emphasize the manipulation and analysis of data produced by QA processes and highlight the overall impact on improving production quality. Additionally, ensure that the examples you provide are within the context of production operations, excluding discussions of QA in product development$/$design $($i$.$e$.,$ product verification$).$