Basics of Six Sigma- Statistical Analysis for Engineering validation

A: A ignores why the property existed in the design. Passing the line today doesn't protect tomorrow. B jumps to measurement without evidence; the signal is in the process, not the gauge. C recognises that the original margin is being consumed and stops the change until the mechanism is understood. D hides the problem by rewriting the chart to suit the outcome.

A: A invents an approval route that isn't there. B aligns with intent: sustained capability and controlled change, not spot compliance. C sounds rigorous but overstates what's required and misreads how margin is managed. D confuses quality management with product certification.

A: A underestimates material scatter and gives false confidence. B is a common first instinct, but the standard error is still too large. C matches first principles: detectable shift scales with variability and sample size, pushing you into the tens. D mixes process drift with estimation and delays the decision without improving sensitivity.

A: A still relies on inspection and specs, not margin. B is the reason the margin existed: to ride through known load excursions. C was never covered by margin in the first place. D sits outside the design basis and doesn't change with this property.