Random Samples of Four Items Are Selected from a Manufacturing

question 33

Multiple Choice

Random samples of four items are selected from a manufacturing process at regular intervals,and a certain quality characteristic is measured. After 25 samples,ΣX = 15,350 and ΣR = 411.4. To construct a mean chart,what is the value for the centerline?

• A)15,350
• B)614
• C)411.4
• D)3837.5

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Definitions:

Impulsive

Characterized by actions taken without forethought or consideration of the consequences; spontaneous behavior.

Conservative

A political and social ideology that emphasizes the value of traditional institutions and practices, resistance to rapid change, and cautiousness in political and social reform.

Liberal

Pertaining to a political and social philosophy that emphasizes individual rights, freedom of expression, and a preference for governmental intervention in social and economic matters.

Openness

A personality trait characterized by an appreciation for art, emotion, adventure, and unusual ideas; imaginative and curious.