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

question 65

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 R chart to see if the variability in collection times is in-control.This R chart is characterized by which of the following?

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

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Definitions:

Behavior

The behavior or responses of a person or system when influenced by external or internal factors.

Incentive

A factor, often a reward or a form of motivation, that induces or influences a person to act or perform in a certain way.

Social Disapproval

Negative judgments or reactions from others in response to an individual's actions, beliefs, or characteristics, often leading to feelings of shame or embarrassment.

Blood Glucose Level

The concentration of glucose present in the blood, vital for maintaining energy in cells, and critical in managing diabetes.