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Exam 7: Work Design and Measurement

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Question 101

Multiple Choice

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The manager of Lawn and Garden Services would like to estimate the proportion of her employees' time spent performing various gardening and lawn care activities. She has made 400 random observations of a typical worker, with the following results: Between what limits can the manager be 68.26 percent confident about the true proportion of time spent mowing?

A) 0 and 0.683
B) 0.475 and 0.525
C) 0.45 and 0.55
D) 0.425 and 0.575
E) 0.4 and 0.6

F) A) and C)
G) B) and C)

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Question 102

Multiple Choice

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A methods and measurement analyst wants to develop a time standard for a certain task. In a preliminary study, he observed one worker perform the task six times with an average observed time of 20 seconds and a standard deviation of 2 seconds. What is the standard time for this task if the employee worked at a 20 percent faster pace than average, and an allowance of 25 percent of the workday is used?

A) 20 seconds
B) 25 seconds
C) 26.7 seconds
D) 30 seconds
E) 32 seconds

F) B) and C)
G) C) and D)

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Question 103

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The two basic causes of accidents are worker carelessness and management demands for increased productivity.

When performing a time study, the analyst converts the observed time into the time a worker would require working at an acceptable "average" pace by using which of the following?

Once production is underway and the learning curve effect is occurring, successive changes made to the production process will cause the time per unit to:

One form of long-term team that is increasingly being used, especially in lean production settings, is:

The owner of Touchdown Sports Bar wants to develop a time standard for the task of mixing a specialty cocktail. In a preliminary study, he observed one of his bartenders perform this task seven times with an average of 90 seconds and a standard deviation of 5 seconds. What is the standard time for this task if the bartender worked at a 20 percent faster pace than is average, and an allowance of 10 percent of job time is used?

A job has an observed cycle time of 4 minutes, a performance rating of 80 percent, and an allowance that is 20 percent of job time. Normal time for the job in minutes is:

The learning curve principle would apply to a baseball pitcher learning to throw a curveball.

A behavioral approach to job design in which workers periodically exchange jobs is known as:

Work sampling provides both quick and accurate estimates of activity times.

Job enrichment and job enlargement are often utilized in these types of operations?

The design of work systems is based on objective standards and thereby avoids most ethical issues.

For purposes of obtaining good time standards using a stopwatch time study, the analyst should try to avoid having the worker discover he or she is being observed.

The motion study chart that describes the movements of both hands at the same time is a:

The learning curve theory is useful in all of the areas except for which of the following?

Trust is a factor influencing productivity.

Which of the following is not a factor that previously had direct impact on the work environment prior to lean operations being implemented?

Which of the following is not considered a factor in working conditions?

Which of the following is the formula for computing learning curves times?