Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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Problems S6.6, s6.7a-d, S6.8a and S6.9. Problems may be solved using QM for windows software or maually
Transcribed Image Text:**Designing Operations - Educational Exercise**
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**Page 266: Part 2**
**Overview:**
This page contains exercises on designing operations with a focus on statistical process control and quality management. The exercises involve calculating control limits and interpreting data for monitoring manufacturing processes.
---
**Exercise Descriptions:**
1. **Exercise on Chicken Breasts (π):**
- Objective: Calculate X-chart limits for monitoring caloric content in chicken breasts.
- Instructions:
- Determine control limits based on four and three standard deviations.
- Discuss implications of using different standard deviations.
2. **Exercise S6.5:**
- Ross Hopkins monitors a filling process with an average of 705 mL and range of 6 mL.
- Task: Calculate upper and lower control limits for mean and range using a sample size of 10.
3. **Exercise S6.6:**
- Evaluate precision-cut wire samples over 24 hours.
- Data Table:
- Contains hourly readings for mean (\(\bar{X}\)) and range (R).
- Task: Develop control charts and identify patterns or causes for concern.
4. **Exercise S6.7:**
- Control diameter in a Shanghai forging process with piston samples.
- Data Table:
- Displays mean and range for five days.
- Tasks:
- Calculate averages, control limits, and assess control based on nominal diameter of 155 mm.
5. **Exercise S6.8:**
- Analyze bowling ball production for weight deviations.
- Provide a set of average weights over multiple days.
- Task: Establish control chart limits and discuss variations when using different standard deviations.
6. **Exercise S6.9:**
- Organic Grains LLC checks net weight of loaves to ensure proper weight with statistical process control.
- Data Table:
- Shows weights for different loaf samples.
- Task: Assess if the process is within control.
7. **Exercise S6.10:**
- Investigate control measures in ingredient ounces.
- Sample size and standard deviation provided for control chart limits.
- Task: Determine control limits and process stability.
8. **Exercise S6.11:**
- Analyze process stability with taken samples of steel rods.
- Task: Draw conclusions about control.
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**Detailed Diagrams:**
- **Data Tables:**
- Organized with columns for metrics such as averages
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step 1: Define - Control chart:
VIEW Step 2: S6.6) Calculate - Mean and range:
VIEW Step 3: S6.6) Calculate - Control limits:
VIEW Step 4: S6.7) Calculate - Mean and range:
VIEW Step 5: S6.7) Calculate - Control limits:
VIEW Step 6: S6.8) Calculate - Control limits:
VIEW Step 7: S6.9) Calculate - Mean and range:
VIEW Step 8: S6.9) Examine - State of the process:
VIEW Step 9: Examine - Table values:
VIEW Solution
VIEW 
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