Six Sigma Green Belt Certification Practice Exam

The primary goal of conducting a process capability study is to determine process stability and capability. This study is essential in understanding how well a process can produce outputs that meet specifications or customer requirements. By assessing the variations in a process and comparing its performance against established quality standards, organizations can identify whether the process is capable of delivering consistent quality. This involves measuring process performance using indices such as Cp, Cpk, Pp, and Ppk, which indicate how well a process is operating relative to its limits. Achieving process stability and capability is foundational for driving improvements and ensuring that subsequent activities, such as quality control and continuous improvement initiatives, are effective. This rationale distinguishes the correct answer from the others, as analyzing customer feedback, reducing cycle time, and increasing workforce efficiency, while important, do not directly address the core aim of establishing how consistently and well a process operates in relation to its requirements.