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Question
Scenario 2.5
A job consists of three distinct work elements that were timed with a highly accurate Swiss watch by a trained industrial engineer. The engineer recorded ten observations and assigned the performance rating that is recorded in the bottom row of the table under the corresponding work element. All recorded times are in seconds.
| Element 1 | Element 2 | Element 3 |
| 15 | 23 | 45 |
| 17 | 25 | 51 |
| 16 | 23 | 52 |
| 13 | 26 | 49 |
| 15 | 25 | 46 |
| 14 | 23 | 43 |
| 16 | 24 | 51 |
| 14 | 25 | 50 |
| 15 | 23 | 49 |
| 16 | 22 | 49 |
| 110 | 115 | 105 |
The allowance factor assigned is 20% for the data recorded. The rating factor for Element 1 is 10%, for Element 2 is 15%, and for Element 3 is 5%. What is the standard time for the three-element job?
Answer
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Related questions
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Q:
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Q:
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Q:
A single-sampling plan by attributes is needed for a purchased component. Table G.1 is appended to this exam.
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Q:
Refer to the bank process model. The bank's process improvement group has developed a number of process and technology changes that will improve the Teller's process rate per customer from a mean of 3.0 minutes to 2.5 minutes (standard deviation remains at 0.5 minutes). The Bank Manager wants to determine if the improved process rate, along with the special promotion for new customers, will allow the "arrive and immediately leave" rate and average customer wait time in line achieved to still be met (12% balk rate, 9.95 minutes in line). If so, the manager will implement the process and technology changes and allow the special promotion to proceed. Using SimQuick, estimate the new arrive and immediately leave rate and average time in line. What decision should the manager make?
Q:
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Q:
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Q:
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Q:
Construct a 3-sigma and R-chart for the length in centimeters of a part from the following table. Sample #
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Observation 2
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Q:
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Table C: The Haul ITEM
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LABOR
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1 hr
$2 Flat screen TV
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represents the cost of gasoline and surgical gloves, and overhead is 20% of the sales price of
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Q:
Consider this list of jobs that have just arrived and are ready for processing. They all require processing first on machine 1 and then on machine 2. Both machines are now idle. Develop a schedule that minimizes makespan and calculate this makespan time. Now assume that each job can be split into two jobs, each having half the duration on both machine 1 and machine 2. Using the original sequence that minimized average flow time, calculate the flow times for all split jobs What is the effect of this new schedule on the average flow time for these split jobs? Job
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Machine 2 1
14
6 2
11
12 3
16
14 4
12
8 5
22
9 6
13
15 7
10
12 8
8
13