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Question
Thermostats are subjected to rigorous testing before they are shipped to air conditioning technicians around the world. Results from the last five samples are shown in the table. Calculate control limits for a chart that will monitor performance to target. The correct control limits as (LCL,UCL) are:
| Unit # | Sample 1 | Sample 2 | Sample 3 | Sample 4 | Sample 5 |
| 1 | 73.5 | 70.8 | 72.2 | 73.6 | 71.0 |
| 2 | 71.3 | 71.0 | 73.1 | 72.7 | 72.2 |
| 3 | 70.0 | 72.6 | 71.9 | 72.4 | 73.3 |
| 4 | 71.1 | 70.6 | 70.3 | 74.2 | 73.6 |
| 5 | 70.8 | 70.7 | 70.7 | 73.5 | 71.1 |
A) (70.46, 73.39).
B) (68.94,74.89).
C) (69.71,74.14).
D) (69.80,74.05).
Answer
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Related questions
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Q:
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Q:
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Q:
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Construct a 3-sigma and R-chart for the length in centimeters of a part from the following table. Sample #
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Q:
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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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14
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11
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12
8 5
22
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13
15 7
10
12 8
8
13