Random Samples of 4 Items Are Selected from a Manufacturing $\Sigma$

question 117

Multiple Choice

Random samples of 4 items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples, $\Sigma$ X = 15,350 and $\Sigma$ R = 411.4
To construct a mean chart, what is the upper control limit (UCL) for the mean?

• A) 614.00
• B) 411.4
• C) 625.996
• D) 3837.5

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Definitions:

Functional Risk

The potential for a product or service to fail to meet expected performance standards or fulfill its intended purpose, leading to dissatisfaction or loss.

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aspects, behaviors, or attributes that are distinctly associated with a particular sex.

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