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9,10

9,10. Quality Quality Control Ch. 9 Homework; 1, Add1 Ch. 10 Homework; 4, 20, 26a, Add1. Chapter 9, Additional Homework 1.

kylee-bartlett
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9,10

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  1. 9,10 Quality Quality Control Ch. 9 Homework; 1, Add1 Ch. 10 Homework; 4, 20, 26a, Add1

  2. Chapter 9, Additional Homework 1 Smith, Schroeder, and Torn (SST) is a short-haul household furniture moving company. SST’s labor force, selected from the local community college football team, is temporary and part-time. SST is concerned with recent complaints/problems, as tabulated on the following tally sheet. Develop a histogram and a Pareto chart to identify the most serious moving problems.

  3. Chapter 10, Additional Homework 1 Five samples of light bulbs, each with four observations/bulbs, were taken from a manufacturing plant. The production manager is concerned that there may be a problem in the manufacturing process. The bulbs are specified to last 600 + 30 hours. Using the data shown below, develop control charts to decide if the manufacturing process is in control. If the process is in control, is the process capable?

  4. Quality Overview The ability of a product or service to meet or exceed customer expectation.

  5. Dimensions of Quality Service Quality Convenience Reliability Responsiveness Time Assurance Courtesy Tangibles Product Quality Performance Aesthetics Special feature Conformance Reliability Durability Perceived quality Serviceability

  6. Consequences of Poor Quality

  7. Benefits of Good Quality

  8. The Costs of Quality • Appraisal costs • Prevention costs • Failure costs • -Internal failures • -External failures

  9. Product/service design Process design Continuous improvement Employee involvement Customer satisfaction Problem-solving tools Purchasing Benchmarking Total Quality Management

  10. Plan Act Do Study Problem Solving Deming Wheel

  11. Quality Tools • Flowchart • Check sheet • Histogram • Pareto chart • Scatter diagram • Control chart • Cause-and-effect-diagram Wellington Fiber Board Example • Checklist • Pareto chart • Cause-and-effect diagram • Histogram

  12. Check Sheet, Wellington Fiber Board Headliner Defects Defect type Tally Total A. Tears in fabric //// 4 B. Discolored fabric /// 3 C. Broken fiber board //// //// //// //// //// //// //// / 36 D. Ragged edges //// // 7 Total 50

  13. Relative and Cumulative Percentages, Wellington Fiber Board

  14. 50 40 30 20 10 0 100 80 60 40 20 0 C Cumulative percentage Number of defects D A B Defect type Pareto Chart, Wellington Fiber Board

  15. People Materials Training Absenteeism Communication Out of specification Not available Broken fiber board Machine maintenance Machine speed Wrong setup Humidity Schedule changes Other Process Cause-and-Effect Diagram, Wellington Fiber Board

  16. Histogram, Wellington Fiber Board Number of broken fiber boards First Second Third Shift

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