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:

Cumulative Earnings

The total amount of net income earned by an individual or entity over a period, often used in the context of calculating pensions or other benefits.

Accrued Vacation Pay

The amount of vacation time that employees have earned but not taken, often calculated to represent a financial liability for the employer.

Defined Contribution Pension Plan

A retirement plan in which the employer, employee, or both make contributions on a regular basis, but final benefits depend on the plan's investment performance.

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