TABLE 18-4 A Factory Supervisor Is Concerned That the Time It Takes

question 65

Multiple Choice

TABLE 18-4
A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits.The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours.The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-to-quality variable should be 10 and 30 seconds,respectively.
-Referring to Table 18-4,suppose the supervisor constructs an R chart to see if the variability in collection times is in-control.This R chart is characterized by which of the following?

• A)Decreasing trend
• B)Increasing trend
• C)In-control
• D)Individual outliers

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Definitions:

Pennate

Describes muscles with fibers that are oriented at an angle to the tendon, resembling a feather's structure, which allows for higher force production.

Tendon

Band or cord of dense connective tissue that connects a muscle to a bone or another structure.

Origin

Less movable attachment point of a muscle; usually the medial or proximal end of a muscle associated with the limbs; also called fixed end.

Class I Lever

A type of lever where the fulcrum is placed between the effort and the load, commonly exemplified by a seesaw.