What is the formula for calculating Process Capability?

OPTIONS

• (USL-LSL)/(6 * ơ)
• (USL+LSL)/(6 * ơ)
• (USL+LSL)/(ơ)
• (USL+LSL)/(2*ơ)

ANSWER

(USL-LSL)/(6 * ơ)

EXPLANATION

Cp = (USL-LSL)/(6 * ơ), with USL – LSL representing the Process Tolerance.