Natural Variations

question 127

Multiple Choice

Natural variations:

• A) affect almost every production process.
• B) are the many sources of variation that occur when a process is under control.
• C) when grouped, form a pattern, or distribution.
• D) are tolerated, within limits, when a process is under control.
• E) All of these.

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Definitions:

Acceptance Sampling

A statistical quality control method where a random sample of items from a lot is tested to determine the acceptance or rejection of the entire lot.

Bad Lots

Refers to batches of goods or products that do not meet the quality standards set by the manufacturer or industry.

Good Lots

In quality control, this term refers to batches of products that meet the specified quality standards.

Control Limits

are statistical boundaries set in process control charts that signal when a process may be out of control and corrective action may be needed.