In the Context of Designing Control Charts, Which of the Following

question 6

Multiple Choice

In the context of designing control charts, which of the following is true of a sample size

• A) A large sample allows small changes in process characteristics to be detected with higher probability than a small sample size.
• B) A small sample is used to detect process shifts of two standard deviations or smaller.
• C) A large sample size is desirable to keep the cost associated with sampling low.
• D) A small sample size provides greater degrees of statistical accuracy in estimating the true state of control than a large sample size.

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Definitions:

Concurrent Validity

A measure of how well a particular test correlates with a previously validated measure.

Content Validity

The extent to which a test measures all aspects of the construct it is supposed to measure.

Construct Validity

A measure of how well a test or tool assesses the construct it claims to measure, indicating the appropriateness of inferences made from test scores.

True Score

The actual score that accurately reflects the variable being measured, without measurement error.