Exam 10: Human Resources, Job Design, and Work Measurement

The accuracy of a labour standard is to be within 5%, and the confidence level is 95%. The standard deviation of the sample is 2 and the mean is 8. What sample size should be used?

A Methods and Measurements Analyst needs to develop a time standard for a certain task. The task involves use of ruler, square, and portable electric saw to mark and cut the "notch" in a rafter (a standard carpentry task of home construction). In a preliminary study, he observed one of his workers perform this task five times. The observations were made in an air-conditioned, well-lighted training facility, at ground level, with all tools and equipment clean and readily available. observation: 1 2 3 4 5 Task time (seconds): 82 74 80 83 76 a. What is the actual average time for this task? b. What is the normal time for this task if the employee worked at a 20% faster pace than is typical for adequately trained workers? c. What is standard time for this task if allowances are 8% constant and 6% variable? d. If the analyst then thought more carefully about his experiment, and decided that the variable allowances needed to be increased to match the real (outside, unair-conditioned) work environment, and that the proper variable allowance was not 6% but 12%, what is the revised standard time?

Mutual trust means that both management and employee strive to meet common objectives.

A Therblig is a very small amount of time, one hundred-thousandth of an hour.

The visual workplace

________ showed that there is a dynamic social system in the workplace.

Identify the five components of job design.

Equitable pay alone cannot achieve a reasonable quality of work life in an organization.

List the eight steps used to develop a time study-based labour standard.

A bank manager wants to determine the percent of time the bank's tellers are working and idle. He decides to use work sampling, and his initial estimate is that the tellers are idle 20% of the time. Approximately how many observations should be taken to be 95% confident that the results will not be more than 5% away from the true result?

How do we establish a fair day's work?

An initial analysis of a laboratory activity resulted in the first table below. After this analysis, the managers determined that their element descriptions were not as accurate as they should have been-they had left out an element, underestimated a distance, and understated the need for accuracy. They revised the table of element data, which appears in the second table. Original Activity: Pouring tube specimen Element description Element code TMU Get tube from rack AA2 35 Get stopper, place on counter AA2 35 Get centrifuge, place at sample tube AD2 45 Pour (3 sec.) PT 83 Place tubes in rack (simo) PC2 TOTAL TMU Revised Activity: Pouring tube specimen Element description Element code TMU Get tube from rack AC3 70 Get stopper, place on counter AA2 35 Get centrifuge, place at sample tube AD2 45 Pour (3 sec.) PT 83 Get stopper, place on tube AC1 40 Place tubes in rack (simo) PC2 TOTAL TMU Calculate the total standard minutes for the original activity "pouring tube specimen." Calculate the total standard minutes for the revised activity "pouring tube specimen." What is the increase, in seconds, from the first version to the second?

What is methods analysis?

________ is a system providing some portion of any profit for distribution to employees.

________ means a job that is not only reasonably safe and for which the pay is equitable, but which also achieves an appropriate level of both physical and psychological requirements.

Ergonomics is a branch of economics that deals with costs of scheduling workers.

Define standard time.

A time study of a certain service task found an average time of 12.7 minutes and a standard deviation of 1.43, with a standard sample large enough that we are 98% confident that standard time is within 4% of its true value? Was a sample of 25 large enough?

The data in the following table represent time-study observations on a new operation with three work elements. On the basis of these observations, find the standard time for the process. Assume an 8% allowance factor. Observations(times in seconds) Element Performance Rating 1 2 3 4 1 105\% 110.2 110.8 112.3 108.7 2 90\% 114.7 115.7 114.8 114.2 3 115\% 109.2 109.3 109.2 108.9

Four of the components of job design are