A Manufacturer of FAX Machines Checks Samples of 50 Units

question 34

Multiple Choice

A manufacturer of FAX machines checks samples of 50 units for functionality at the conclusion of the assembly process. The results of 10 samples are shown below: What sample is out of control?

• A) 1
• B) 2
• C) 3
• D) 4
• E) none of the above

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Definitions:

Internal Validity

The degree to which a study can demonstrate a causal relationship between variables, free from the contamination of other variables that might confound the results.

External Validity

The degree to which a study's findings can be applied to different contexts and diverse individuals.

Generalizability

The extent to which research findings and conclusions can be applied to broader populations or different contexts beyond the study sample.

Intervention

An action or process of intervening, usually aimed at producing some kind of change or improvement in a situation.