Exam 11: Operational Decision-Making Tools: Work Measurement

As part of its quality-improvement program,a company is conducting a time study for a particular job.The time study encompassed 10 job cycles,and the results include the following cumulative times and performance rating factors for each element: The standard time for this job using an allowance factor of 16% is

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 20% the standard time for this job would be

How many observations should be taken to be 95% confident of being within + 5% of the actual time a machine is busy if it is believed that the machine is in use 75% of the time?

The basic principle underlying an incentive piece-rate wage system is that workers produced more if they were paid for the additional output.

___ time is the time required by an "average" worker to perform a job under normal circumstances and conditions.

The normal time to perform a job is calculated by dividing the elemental average by the standard time.

How many observations should be taken to be 90% confident of being within + 2% of the actual time a machine is busy if it is believed that the machine is in use 70% of the time?

List the steps in work sampling.

Advantages of using a predetermined motion time system include all of the following except

In a time study,the standard time is calculated as

How many cycles should be used in a time study in order to be 95% confident that the time-study average job cycle time is within 5% of the true average job cycle time? Assume that the average job cycle time was 2.67 minutes and the standard deviation of the sample was 0.72 minutes.

The allowance factor is a percentage increase in the normal cycle time.

Work sampling is an easier,cheaper,and quicker approach to work measurement than time study.

For a particular time study a company would like to be 90% confident that the average job cycle time is within 5% of the true average job cycle time.Assume that the average job cycle time was 15.76 minutes and the standard deviation of the sample was 3.2 minutes.The number of cycles that should be used in this time study would be

Management believes a critical piece of equipment is busy 85% of the time.How many observations should be taken if management wants to be 98% confident the estimate is within + 2.5% of the actual proportion of time the equipment is in use?

A time study is a statistical sample distribution,where the number of cycles is the sample size.

The normal times for basic,generic micro motions developed by an outside organization in a laboratory-type environment are referred to as

As part of its quality-improvement program,a company is conducting a time study for a particular job.The time study encompassed 10 job cycles,and the results include the following cumulative times and performance rating factors for each element.An allowance factor of 16% is assumed. The normal cycle time for this job would be

A work sampling study is being conducted on a loading machine in a warehouse.How many observations should be taken if management wants to be 95% confident the estimate is within + 6% of the actual proportion of time the loader is busy if management believes the loading machine is in use 70% of the time?

Work sampling tends to be more disruptive on the workplace than time studies.