TABLE 17-4 A Factory Supervisor Is Concerned That the Time It Takes

question 43

Multiple Choice

TABLE 17-4
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 17-4,suppose the supervisor constructs an chart to see if the process is in-control.Which expression best describes this chart?

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

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Definitions:

Momentarily Energized

Describes a circuit, component, or system that is powered or switched on for a brief period before returning to a de-energized state.

LED Light Sources

Light-emitting diodes used as efficient and durable illumination devices in various applications.

Continuous Beam

A structural element that spans over more than two supports to provide greater stability and support for loads over a larger area.

Selector Switch

A switch that allows the user to choose between two or more positions or functions, often used in electronic or electrical devices.