A Quality Analyst Wants to Construct a Control Chart for Determining

question 10

Multiple Choice

A quality analyst wants to construct a control chart for determining whether four machines, all producing the same product, are in control with regard to a particular quality attribute. Accordingly, she inspected 1,000 units of output from each machine in random samples, with the following results: $$\begin{array} { c c } \text { Machine } & \text { Total Defectives } \\\hline \# 1 & 23 \\\# 2 & 15 \\\# 3 & 29 \\\# 4 & 13\end{array}$$
For upper and lower control limits of .026 and .014, which machine(s) , if any, appear(s) to be out-of-control for process proportion of defectives?

• A) machine #3
• B) machine #4
• C) machines #3 and #4
• D) machines #2 and #3
• E) none of the machines

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Definitions:

Defence Mechanisms

Psychological strategies used unconsciously by individuals to protect themselves from anxiety and the perception of internal/external threats.

Change Stage

A phase within a process of transformation or transition which an individual, group, or organization moves through.

Organizational Learning

The process by which an organization improves itself over time through gaining experience and using that to create knowledge or efficiency gains.

Primary Methods

Fundamental techniques or approaches used in a field of study or area of investigation.