
Concept explainers
i)
Interpretation: by using
Concept introduction:Mean(x-bar) charts:
X bar charts is a type of statistical process control chart which measures a central a shift in the central tendency of the process. In other words, X- bar charts monitor the mean or average of a product characteristics. The central line of the X-bar chart is the average of the samples and limits are defined as
Upper control limit
Lower control limit
(
Abbreviations:
R chart:
R-chart or range-chart is also a type of statistical process control chart, but it monitors the range of dispersion or variability of process. The central line of the r- chart is the average range and limits are:
(
The data corresponding to sampling of the given firm is given below
Mean of the diameter
Average range
Control limits are
ii)
Interpretation: by using
Concept introduction:a process is said to be out control if one or more data points fall outside the control limits.
iii)
Interpretation: determine what trade off would consider by using result of a and b.
Concept introduction: trade off is a situational decision that involves diminishing or losing one quality, quantity or design in return for gains in other aspects

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Chapter 3 Solutions
MyLab Operations Management with Pearson eText -- Access Card -- for Operations Management: Processes and Supply Chains
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- How does rework hurt a process? Give examples on how rework can hurt a process. Please provide a referencearrow_forwardHow does rework hurt a process? Give examples on how rework can hurt a process. Please provide a referencearrow_forwardWhat the different between a near miss and hazard 1. movement and contact 2. Contact 3. movementarrow_forward
- The fixed and variable costs for three potential manufacturing plant sites for a rattan chair weaver are shown: Site Fixed Cost Per Year Variable Cost per Unit 1 $700 $12.00 2 $1,000 $7.00 $2,200 $5.00 a) After rounding to the nearest whole number, site 1 is best below After rounding to the nearest whole number, site 2 is best between After rounding to the nearest whole number, site 3 is best above b) If the demand is 590 units, then the best location for the potent 3 units. and units. 600 0 60 units. g plant isarrow_forwardRefer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: Hour R Hour X R Hour X R Hour X R 1 3.25" 0.71" 7 3.15" 0.58" 13 3.11" 0.85" 19 4.51" 1.56" 2 3.20 1.18 8 2.65 1.08 14 2.83 1.31 20 2.79 1.14 3 3.12 1.38 9 15 4. 3.39 1.31 10 5 2.97 1.17 6 2.76 0.32 3.02 0.71 3.12 1.01 2.75 1.33 16 2.74 0.50 22 11 2.73 1.17 17 2.76 1.43 23 12 2.87 0.45 18 2.64 1.24 21 2.75 1.03 3.18 0.46 2.94 1.53 24 2.54 0.97 Based on the sampling done, the control limits for 3-sigma x chart are (round all intermediate calculations to three decimal places before proceeding with further calculations): Upper Control Limit (UCL) = inches (round your response to three decimal places). Lower Control Limit (LCL) = inches (round your response to three decimal places). Based on the x-chart, the wire cutting process has been The control limits…arrow_forwardChoose a specific cars company. E.g Toyota, Volkswagen, Hyundai, Mercedes-Benz, BMW, Honda, Ford, Audi, Tesla Define a list of required machinery, equipment, workstations, offices, rest areas, materials, etc. Develop and define the location of machinery, equipment, workstations, offices, rest areas, materials. Make the distribution in the manufacturing facility the most efficient way possible. Develop a process distribution for one specific product. Explain why you consider this is the most efficient distribution for this specific manufacturing facility. demonstrate the benefits of optimizing a production line with the best distribution of its equipment and spaces. To be more productive and profitable.arrow_forward
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- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
