Operations Management: Sustainability and Supply Chain Management Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
12th Edition
ISBN: 9780134422404
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Question
Chapter 10, Problem 11DQ
Summary Introduction
To classify: The given job elements; whether they are fatigue, personal or delay.
Introduction: A job is a task performed by people in exchange for money. Usually, a job consists of responsibilities, duties, and tasks that are specific or defined. In the current world, people are identified with their role or job performed for particular enterprise. For example, engineer, supervisor or artists and more.
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Identify to which category of “personal”, “fatigue”, or “delay” the following job elements belong to a) The hair-dresser takes the phone to confirm a booking, in the middle of a client haircut. b) The doctor takes a cup of coffee and a quick rest in a short time between visiting two patients. c) In a long-distance drive, the coach driver stops in a service area every two to three hours to have some food.
After training, Mary Fernandez, a computer tech-nician, had an average observed time for memory-chip tests of
12 seconds. Mary’s performance rating is 100%. The firm has apersonal fatigue and delay allowance of 15%.a) Find the normal time for this process.b) Find the standard time for this process.
Ergonomics problem
A work measurement analyst in the Electrical Company took 10 observations (for each element) of an operation job. The operation consists of four elements of work. Result of observation was shown in a Table attached.
a. Determine the standard time and standard output if the total allowance time is 12%
b. Check whether number of observation is sufficient or not for a 95 percent confidence level and 5 percent significant level.
Chapter 10 Solutions
Operations Management: Sustainability and Supply Chain Management Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
Ch. 10 - Prob. 1DQCh. 10 - Prob. 2DQCh. 10 - Prob. 3DQCh. 10 - Prob. 4DQCh. 10 - Prob. 5DQCh. 10 - Prob. 6DQCh. 10 - Prob. 7DQCh. 10 - Prob. 8DQCh. 10 - Prob. 9DQCh. 10 - Prob. 10DQ
Ch. 10 - Prob. 11DQCh. 10 - Prob. 12DQCh. 10 - Prob. 13DQCh. 10 - Prob. 14DQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Draw an activity chart for a machine operator with...Ch. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - Prob. 18PCh. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Prob. 28PCh. 10 - Prob. 29PCh. 10 - Prob. 30PCh. 10 - Prob. 31PCh. 10 - Prob. 32PCh. 10 - Prob. 33PCh. 10 - Prob. 34PCh. 10 - Prob. 35PCh. 10 - Prob. 36PCh. 10 - Prob. 37PCh. 10 - Prob. 38PCh. 10 - Prob. 1CSCh. 10 - Prob. 2CSCh. 10 - Prob. 3CSCh. 10 - Prob. 4CSCh. 10 - Prob. 2.1VCCh. 10 - Prob. 2.2VCCh. 10 - Prob. 2.3VCCh. 10 - Prob. 2.4VCCh. 10 - Prob. 1.1VCCh. 10 - Prob. 1.2VCCh. 10 - Prob. 1.3VC
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- You recorded an observed time of 1 minute per unit of production. If the performance rating of the observed worker was 120 and 5% PNA was provided, what is the standard time per unit?arrow_forwardBased on a careful work study in the Hofstetter Corp., the results shown in the following table have been observed: a) Compute the normal time for each work element.b) If the allowance for this type of work is 15%, what is the standard time?c) How many observations are needed for a 95% confidence level within ±5% accuracy? (Hint: Calculate the sample size of each element.)arrow_forwardAn analyst has timed a metal-cutting operation for 50 cycles. The average time per cycle was10.40 minutes, and the standard deviation was 1.20 minutes for a worker with a performance ratingof 125 percent. Assume an allowance of 16 percent of job time. Find the standard time for thisoperationarrow_forward
- Consider a job that you have held. Write a brief job description. Then develop a behaviorally anchored rating scale (BARS). What are some of the strengths and weaknesses associated with BARS?arrow_forwardA time study was made of an existing job to develop new time standards. A worker was observed for 45 minutes.During that period, 30 units were produced. The analyst rated the worker as performing at a 90 percent performance rate. Allowances in the firm for rest and personal time are 12 percent. a. What is the normal time for the task?b. What is the standard time for the task?c. If the worker produced 300 units in an eight-hour day, what would be the day’s pay if the basic rate was $6 per hour and the premium payment system paid on a 100 percent basis?arrow_forwardYou are given the following information (a) Develop the mean observed time for each element.(b) Calculate the normal time for each element.(c) Using an allowance factor of 15 percent of job time, calculatethe standard time for each element and for the entire job.(d) How many units should be completed each hour if theworker performs at 100 percent of the standard?(e) How many units should be completed each hour if theworker performs at 110 percent of the standard?arrow_forward
- You want to know the standard time of a welding process. The analyst has obtained the followingi information: average timed time - 1.30 minutes rhythm assessment - 110 fixed supplements - 5% variable supplements - 2% Determine the standard time, in minutes, of the welding process: a) 143 min b) 145 min c) 150 min d) 153 minarrow_forwardIn time study, the rating factor is applied to determine a)standard time of a job b)merit rating of the worker c)fixation of incentive rate d)normal time of a worker [Don't use chatgpt otherwise give 20downvotes]arrow_forwardAfter training, Mary Fernandez, a computer technician, had an average observed time for memory-chip testsof 12 seconds. Mary’s performance rating is 100%. The firmhas a personal fatigue and delay allowance of 15%.a) Find the normal time for this process.b) Find the standard time for this process.arrow_forward
- How is the estimate for labour time determined when the job does not does not match the labour times guide? (30-50 words)arrow_forwardState the primary attribute of the behavioral approach to job design ?arrow_forwardAfter training, Mary Fernandez, a computer technician, had an average observed time for memory-chip tests of 15 seconds. Mary's performance rating is 105%. The firm has a personal fatigue and delay allowance of 12%. a) The normal time for this process = seconds (round your response to two decimal places). b) The standard time for this process =seconds (round your response to two decimal places).arrow_forward
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