SCENARIO 19-4 A Factory Supervisor Is Concerned That the Time It Takes

question 13

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 limit for the critical-to-quality variable should be 10 and 30 seconds,respectively.
-Referring to Scenario 19-4,suppose the supervisor constructs an x̄ 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:

Temporal Lobe

A region of the brain located at the sides of the brain, responsible for processing auditory information and encoding memory.

Auditory Canal

The tube that runs from the outer ear to the middle ear, also known as the ear canal, through which sound waves travel.

Coagulation Laser

A medical device used to induce blood clotting through laser energy, often used in surgeries to minimize bleeding.

Retinal Detachment

A serious condition where the retina at the back of the eye pulls away from its normal position.