Operations Management
14th Edition
ISBN: 9781260238891
Author: Stevenson
Publisher: MCG
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Question
Chapter 7, Problem 5P
Summary Introduction
To determine: The observed time for each element.
Introduction: The amount of the dependency on human effort by an organization in terms of achieving its goals is given by the work design. It is directly linked to the productivity of an organization where good work design helps in achieving high productivity.
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Given these observed times (in minutes) for five elements of a job, determine the observed time (OT) for each element. Note: Some of the elements occur only periodically
Given these observed times (in minutes) for four elements of a job, determine the observed time (OT) for each element. Note: The second element only occurs every other cycle
A work operation consisting of three elements has been subjected to a stopwatch time study. The recorded observations are shown in the following table. By union contract, the allowance time for the operation is personal time 5%, delay 5%, and fatigue 10%. Determine the standard time for the work operation.
Chapter 7 Solutions
Operations Management
Ch. 7.S - Prob. 1DRQCh. 7.S - Prob. 2DRQCh. 7.S - Prob. 3DRQCh. 7.S - Prob. 4DRQCh. 7.S - Prob. 5DRQCh. 7.S - Prob. 6DRQCh. 7.S - Prob. 7DRQCh. 7.S - Prob. 8DRQCh. 7.S - Prob. 9DRQCh. 7.S - Prob. 10DRQ
Ch. 7.S - Prob. 1PCh. 7.S - Prob. 2PCh. 7.S - Prob. 3PCh. 7.S - Prob. 4PCh. 7.S - Prob. 5PCh. 7.S - Prob. 6PCh. 7.S - Prob. 7PCh. 7.S - Prob. 8PCh. 7.S - Prob. 9PCh. 7.S - Prob. 10PCh. 7.S - Prob. 11PCh. 7.S - Prob. 12PCh. 7.S - Prob. 13PCh. 7.S - Prob. 14PCh. 7.S - Prob. 15PCh. 7.S - Prob. 16PCh. 7.S - Prob. 17PCh. 7.S - Prob. 18PCh. 7.S - Prob. 19PCh. 7.S - Prob. 1CQCh. 7.S - Prob. 2CQCh. 7.S - Prob. 3CQCh. 7 - Prob. 1DRQCh. 7 - What are some of the main advantage and...Ch. 7 - Prob. 3DRQCh. 7 - Prob. 4DRQCh. 7 - Prob. 5DRQCh. 7 - Prob. 6DRQCh. 7 - Prob. 7DRQCh. 7 - What are motion study principles? How are they...Ch. 7 - Prob. 9DRQCh. 7 - Prob. 10DRQCh. 7 - Prob. 11DRQCh. 7 - Prob. 12DRQCh. 7 - Prob. 13DRQCh. 7 - Prob. 14DRQCh. 7 - Prob. 15DRQCh. 7 - Prob. 16DRQCh. 7 - Prob. 17DRQCh. 7 - Prob. 18DRQCh. 7 - Prob. 19DRQCh. 7 - Prob. 1TSCh. 7 - Prob. 2TSCh. 7 - Prob. 3TSCh. 7 - Prob. 1CTECh. 7 - Prob. 2CTECh. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Given these observed times (in minutes) for four...Ch. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10PCh. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - An analyst made the following observations about...Ch. 7 - Prob. 15PCh. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19P
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- What is the main aim of task calculation to define working time standards?arrow_forwardNine observations from a work measurement study using continuous timing are shown below. Allowances are determined as: personal, five percent; fatigue, five percent; delay, seven percent. Use the Work Measurement Excel template to determine the standard time for this operation.arrow_forwardWhat is the first step in the process of time control?arrow_forward
- The owner of Touchdown Sports Bar wants to develop a time standard for the task of mixing a specialty cocktail. In a preliminary study, he observed one of his bartenders perform this task seven times with an average of 90 seconds and a standard deviation of five seconds. What is the standard time for this task if the bartender worked at a 20 percent faster pace than is average, and an allowance of 10 percent of job time is used?arrow_forwardIs the latency of interruptions a factor in how long it takes to switch tasks?arrow_forwardExplain what is the main aim of task calculation to define working time standard ?arrow_forward
- Calculate the average time it takes the employee described in the table to complete all four tasks ?arrow_forwardExplain the consequences of task time variability on line balancing.arrow_forwardUsing the LPT (longest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): Sequence 1 Job 2 3 4 5 The total flow time for the sequence developed using the LPT rule = response to two decimal places). days (round your The percentage utilization for the sequence developed using the LPT rule = your response as a percentage rounded to two decimal places). % (enter The average number of jobs in the system for the sequence developed using the LPT rule jobs (round your response to two decimal places). = The average tardiness (job lateness) for the sequence developed using the LPT rule = days (round your response to two decimal places).arrow_forward
- An assembly task was broken down into four elements, and timed using the continuous timing method. The resulting data and performance ratings are provided below. Calculate the total standard time for this task. Element 1 2 3 4 Watch Time 1.85 2.96 5.42 7.10 Observed Time Rating 95 105 120 115 Normal Time Total ST Standard Timearrow_forwardA foreman has determined the expected processing times at a machine for a set of jobs and now wants to sequence them. Given the following information, do the following: Job Time Due Date Job (days) (days) a 4.5 10 6.0 17 5.2 12 d. 1.6 27 e 2.8 18 f 3.3 19 a-1. Determine the processing sequence using (1) MST, (2) SPT, (3) EDD, and (4) CR. Rule Sequence a-с-b-е-f-d MST d-e-f-a-c-b SPT a-c-b-e-f-d EDD a-c-b-f-e-d O CR a-2. For each sequence, calculate the average days late, the average flow time, and the average WIP. (Do not round intermediate calculations. Round the final answers to 2 decimal places.) Rule Average lateness Average flow time Average WIP day (s) day (5) MST & EDD day(s) jobs day (s) jobs SPT day (s) day (s) jobs CR b. Which rule is best? SPT O has the lowest average flow time & average WIP, but EDD & MST have the lowest average days late.arrow_forwardOmar is the Head of IT Systems and Applications at AAA corporation. His job has been redesigned to includeshifting him between jobs at regular intervals. Specify the job design approach that is used in this case.arrow_forward
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