Random Samples of Four Items Are Selected from a Manufacturing

question 10

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 R-bar used to compute the limits?

• A)411.4
• B)614
• C)16.46
• D)102.88

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Definitions:

Blaming Others

The act of assigning responsibility for faults or wrongs to someone else.

Unfairly

In a manner that is not based on justice or equality; biased or prejudiced treatment.

Self-fulfilling Prophecy

A prediction that causes itself to become true due to the behavior it generates in believers.

Discriminatory Manner

Acting in a way that makes an unfair distinction in treating people, especially on the grounds of race, age, or sex.