The Process Capability Index $(C_{pk})$ is used to measure how well a process performs relative to its specification limits$.$ How does $C_{pk}$ incorporate process characteristics?

$C_{pk}$ assesses accuracy by considering the distance between the mean and the upper specification limit $($USL$)$ only.

$C_{pk}$ only measures precision, as it reflects how tightly data points are clustered around the mean.

$C_{pk}$ reflects both precision $($data spread$)$ and accuracy $($mean vs$.$ target$).$

$C_{pk}$ focuses only on accuracy, ensuring that the process mean is close to the target value.

$C_{pk}$ measures accuracy through the standard deviation of the process and ignores precision.