SCENARIO 19-4 a Factory Supervisor Is Concerned That the Time

question 158

Multiple Choice

SCENARIO 19-4 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 limits for the critical-to-quality variable should be 10 and 30 seconds, respectively.
-Referring to Scenario 19-4, suppose the supervisor constructs an chart to see if the process is in-control.What is the center line of the chart?

• A)20.00
• B)20.26
• C)21.00
• D)24.26

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Definitions:

Allen-Bradley Data Highway

A proprietary communication network used to connect Allen-Bradley PLCs and other devices for industrial automation.

Communications Network

A system of interconnected devices and technologies designed to facilitate communication and data exchange across multiple locations.

Network Topology

Network topology refers to the arrangement of the elements (links, nodes, etc.) of a communication network.

Arranged

Organized or set out in a particular way, often referring to the systematic organization of elements within a system.