Six Sigma 도입

Includes Minimum Allowable Limit (LSL) as a key factor.

$C_{pL} = \frac{μ - LSL}{3σ}$ to compute Cpl.

Measures the variability of the data.

Minimum allowable limit for the measured item in Cpl.

Indicates a higher average within allowable limits.

Decrease the LSL to increase the Cpl value.

Cultural change in the organization is crucial during Six Sigma implementation.

Costs associated with quality verification.

Requires upper and lower specification limits to compute Cpk.

Indicates a deficiency in the lower specification limit.

Audit costs are not part of the failure costs in Six Sigma.

Achieves long-term prevention of issues.

Represents the spread or variability in the data.

Indicates deficiencies in product quality.

$C_{p,l} = \frac{μ - LSL}{3σ}$ is the correct definition.

$UCL = μ + Z \cdot S_X$ calculates the upper control limit.

$LCL = μ - Z \cdot S_X$ requires mean and Z value.

Mean can be calculated as $\hat{p} = \frac{1}{n} \sum{p}$.

Variance of the process variability is crucial when evaluating Cpl.

For approximation, p must be between 0 and 1.

For $Z = 3$, $UCL = 0.05 + 3 \cdot \frac{0.05 \cdot (1 - 0.05)}{100}$.

A low standard is $C_{p,l} < 1$ indicating need for improvement.

Accurate data is essential for calculating mean value $\hat{p}$.