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

question 103

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 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:

Stage of Exhaustion

The stage of exhaustion is the final phase of the stress response, where the body has depleted its resources for coping with stress, leading to decreased function and potential burnout.

Prolonged Stressor

A long-term or continuous challenge, threat, or demand that significantly pressures an individual’s coping mechanisms, potentially leading to chronic stress.

Sympathetic Nervous System

Part of the autonomic nervous system that prepares the body for rapid action in stressful situations, often described as the "fight or flight" response.

Type B Personality

Characterized by a generally laid-back, reflective, patient, and relaxed disposition, often contrasted with the more stressed and urgency-driven Type A personality.