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

question 104

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 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:

Gross Profits

The income a business earns once it subtracts the expenses involved in producing and distributing its goods, or the expenses incurred from offering its services.

Payoff Table

A table used in decision making that shows the outcome or payoffs for different strategies under various conditions.

Environmentally Safe Material

Materials that are not harmful to the environment, often characterized by being recyclable, biodegradable, or non-toxic.

Payoff Table

A tabular representation of the outcomes or payoffs from different decisions or strategies under various states of nature.