Exam 12: Supplement Operational Decision-Making Tools: Work Measurement

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 is 1.26 minutes.The number of cycles that should be used in this time study would be

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

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

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

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

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

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

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

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 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

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

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

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 produce more if they are paid for the additional output.

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

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

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?

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 is 2.67 minutes,and the standard deviation of the sample is 0.72 minutes.

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

The historical objective behind work measurements and time studies was to develop a fair method of job evaluation and payment.