SCENARIO 19-3 A Quality Control Analyst for a Light Bulb Manufacturer Is

question 60

Multiple Choice

SCENARIO 19-3
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.

-Referring to Scenario 19-3,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:

DNA

Deoxyribonucleic acid, a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.

Chromosomes

Structures located within the nucleus of a cell, composed of DNA and proteins, that carry genetic information in the form of genes.

Genes

The basic biological units of heredity located on chromosomes, containing the instructions for the development, functioning, growth, and reproduction of all known organisms.

Fraternal

pertaining to brothers; showing a close and supportive relationship like that between brothers.