SCENARIO 15-3
a Quality Control Analyst for a Light Bulb

question 248

Multiple Choice

SCENARIO 15-3
A quality control analyst for a light bulb manufacturer is concerned that the time it takes to produce a batch of light bulbs is too erratic.Accordingly, the analyst randomly surveys 10 production periods each day for 14 days and records the sample mean and range for each day.
$\begin{array}{ccc}\underline{\text { Day }}&\underline{ \bar{X} \text { (inminutes) }}& \underline{\text { R}}\\1 & 58.5 & 5.1 \\2 & 47.6 & 7.8 \\3 & 64.3 & 6.1 \\4 & 60.6 & 5.7 \\5 & 63.7 & 6.2 \\6 & 57.5 & 6.0 \\7 & 55.0 & 5.4 \\8 & 54.9 & 6.1 \\9 & 55.0 & 5.9 \\10 & 62.7 & 5.0 \\11 & 61.9 & 7.1 \\12 & 60.0 & 6.5 \\13 & 58.3 & 5.9 \\14 & 52.0 & 5.2\end{array}$
-Referring to SCENARIO 15-3, suppose the analyst constructs an R chart to see if the variability in production times is in-control.The R chart is characterized by which of the following?

• A)Increasing trend
• B)Decreasing trend
• C)In-control
• D)Points outside the control limits

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Definitions:

Perceptual Marketing

Marketing strategies that focus on influencing consumers’ perceptions and attitudes towards a product or brand rather than its actual attributes.

Social Responsibility

The obligation of individuals, organizations, and businesses to act for the benefit of society at large, emphasizing ethical behavior and actions that contribute positively to the community.

Marketing Ethics

Principles and standards that guide behavior and decisions in marketing to ensure fairness, honesty, and respect for consumers and society.

Commoditization

The process in which goods or services become interchangeable with others in the same market, leading to competition primarily on price.