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

question 98

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 R chart to see if the variability in collection times is in-control. What are the lower and upper control limits for this R chart?

• A) -2.33, 43.13
• B) -2.28, 42.28
• C) 0, 42.28
• D) 0, 43.13

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Definitions:

Depends Upon

A phrase indicating that the outcome is influenced or determined by a specific factor or condition.

CS Predict

The ability of a conditioned stimulus (CS) to predict the occurrence of an unconditioned stimulus, forming the basis of classical conditioning.

Classical Conditioning

A learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus, first demonstrated by Ivan Pavlov.

US

Stands for "Unconditioned Stimulus," a stimulus that naturally and automatically triggers a response without prior conditioning in the context of psychology.