Exam 11: Operational Decision-Making Tools: Work Measurement

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How many cycles should be used in a time study in order to be 98% confident that the time-study average job cycle time is within 4% of the true average job cycle time? Assume that the average job cycle time was 4.25 minutes and the standard deviation of the sample was 0.65 minutes.

(Multiple Choice)

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Question 21

Workers often do not like to be the subject of a time study and are sometimes unwilling to cooperate.

(True/False)

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Question 22

Rating worker performance is typically an objective,easy task that can be done by any employee.

(True/False)

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Question 23

What is work sampling and what is its primary use?

(Essay)

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Question 24

For a particular time study,a company would like to be 95% confident that the average job cycle time is within 2% of the true average job cycle time.Assume that the average job cycle time was 6.53 minutes and the standard deviation of the sample was 1.26 minutes.The number of cycles that should be used in this time study would be

(Multiple Choice)

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Question 25

Work sampling is a technique for determining the proportion of time a worker or machine is idle.

(True/False)

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Question 26

Briefly discuss the advantages and disadvantages of a predetermined motion time system.

(Essay)

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Question 27

Determining the length of time it takes to do a job is known as work measurement.

(True/False)

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Question 28

As part of a time study,a particular job was analyzed.The study included 20 job cycles and the following cumulative times and performance rating factors for each element were reported: Assuming an allowance factor of 15%,the standard time for this job would be

(Multiple Choice)

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Question 29

Under normal circumstances and conditions,the time required by an "average" worker to perform a job once is referred to as the cycle time.

(True/False)

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Question 30

In a time study,the normal time is computed as

(Multiple Choice)

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Question 31

Showing 21 - 31 of 31

How many cycles should be used in a time study in order to be 98% confident that the time-study average job cycle time is within 4% of the true average job cycle time? Assume that the average job cycle time was 4.25 minutes and the standard deviation of the sample was 0.65 minutes.

Workers often do not like to be the subject of a time study and are sometimes unwilling to cooperate.

Rating worker performance is typically an objective,easy task that can be done by any employee.

What is work sampling and what is its primary use?

Work sampling is a technique for determining the proportion of time a worker or machine is idle.

Briefly discuss the advantages and disadvantages of a predetermined motion time system.

Determining the length of time it takes to do a job is known as work measurement.

As part of a time study,a particular job was analyzed.The study included 20 job cycles and the following cumulative times and performance rating factors for each element were reported: Assuming an allowance factor of 15%,the standard time for this job would be

Under normal circumstances and conditions,the time required by an "average" worker to perform a job once is referred to as the cycle time.

In a time study,the normal time is computed as

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