A Quality Analyst Wants to Construct a Control Chart for Determining

question 130

Multiple Choice

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are under control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results: $$\begin{array} {r } { \text { Measurements } } \\\begin{array} { l l l l l } \text { Machine } & \\\hline \# 1 & 17 & 15 & 15 & 17 \\\# 2 & 16 & 25 & 18 & 25 \\\# 3 & 23 & 24 & 23 & 22\end{array}\end{array}$$ What is the estimate of the sample average range based upon this limited sample?

• A) 13.0
• B) 4.33
• C) 5.4
• D) 4.2
• E) 2.0

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Definitions:

Internal Locus of Control

The belief that one has control over their life events and outcomes, rather than external forces.

Conscious

Being aware of and responsive to one's surroundings; awake.

Sick Grandfather

A family scenario involving an elderly male relative who is ill or suffering from health issues.

Self-Esteem

An individual's subjective evaluation of their own worth and abilities.