TABLE 18-3
a Quality Control Analyst for a Light

question 15

Multiple Choice

TABLE 18-3
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.
$$\begin{array}{ccc}\text { Day }& \bar { X } \text { (in minutes) } & R\\\hline1 & 58.5 & 5.1 \\2 & 47.6 & 7.8 \\3 & 64.3 & 6.1 \\4 & 60.6 & 5.7 \\5 & 63.7 & 6.2 \\6 & 57.5 & 6.0 \\7 & 55.0 & 5.4 \\8 & 54.9 & 6.1 \\9 & 55.0 & 5.9 \\10 & 62.7 & 5.0 \\11 & 61.9 & 7.1 \\12 & 60.0 & 6.5 \\13 & 58.3 & 5.9 \\14 & 52.0 & 5.2\end{array}$$
-Referring to Table 18-3, suppose the analyst constructs an R chart to see if the variability in production times is in-control. What is the upper control limit for this R chart?

Understand the concepts and differences between strategic and responsive corporate social responsibility.

Grasp the definition and process of becoming a B Corporation.

Comprehend the importance of a public relations and communications specialist in managing corporate social responsibility, particularly for large corporations.

Recognize the strategic use of public relations in promoting corporate events and initiatives.

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Definitions:

Blindness

The condition of lacking visual perception due to physiological or neurological factors.

Americans

People originating from or residing in the United States of America.

IOL

An acronym for Intraocular Lens, a synthetic lens implanted in the eye to replace the eye's natural lens often during cataract surgery.

Anisocoria

A condition characterized by unequal pupil sizes in the eyes.