Concept explainers
a)
To determine: The optimal level of inspection.
b)
To determine: The factors that guide the decision of inspection.
Introduction:
An optimal inspection is a situation in which the cost and effort exerted equals the benefits and results obtained from inspection.
c)
To determine: The main consideration in choosing between centralized inspection and on-site inspection.
Introduction:
An optimal inspection is a situation in which the cost and effort exerted equals the benefits and results obtained from inspection.
d)
To determine: The points that are potential candidates for inspection.
Introduction:
An optimal inspection is a situation in which the cost and effort exerted equals the benefits and results obtained from inspection.
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
OPERATIONS MANAGEMENT (LL) W/CONNECT
- Pareto solution The following table shows the defects identified in the final inspection, during a month, in the soft drink bottles, as well as the number of times these have occurred.arrow_forwardIn response to intensive foreign competition, the management of Florex Company has attempted over the past year to improve the quality of its products. A statistical process control system has been installed and other steps have been taken to decrease the amount of warranty and other field costs, which have been trending upward over the past several years. Costs relating to quality and quality control over the last two years are given below: Costs (in thousands) Last Year This Year Inspection $ 720 $ 909 Quality engineering $ 450 $ 765 Depreciation of test equipment $ 675 $ 270 Rework labor $ 1,080 $ 1,530 Statistical process control $ 0 $ 225 Cost of field servicing $ 1,350 $ 1,260 Supplies used in testing $ 45 $ 81 Systems development $ 720 $ 900 Warranty repairs $ 3,780 $ 1,620 Net cost of scrap $ 630 $ 1,170 Product testing $ 900 $ 1,800 Product recalls $ 3,150 $ 900 Disposal of defective products $ 810 $ 1,080 Sales have been flat over the…arrow_forwardUse Pareto analysis to investigate the following data collected on a printed-circuit-board assembly line: a) Prepare a graph of the data. b) What conclusions do you reach?arrow_forward
- A defense contractor manufactures rifles for the military. The military has exacting quality standards that the con-tractor must meet. The military is very pleased with the quality of the products provided by the contractor andrarely has to return products or has reason for complaint.However, the contractor is experiencing extremely high quality-related costs. Speculate on the reasons for the con-tractor’s high quality-related costs.arrow_forwardWhat is the goal of quality control?arrow_forwardAlpesharrow_forward
- Answer these questions about inspection:a. What level of inspection is optimal?arrow_forwardA quality control scheme is in operation for a process producing ball-bearings. Samples of 6 bearings are taken every hour and bearing diameters are measured. The mean diameter delivers is 2 cm with standard deviation of 0.002 cm. To bearing diameter specification is within the range of 1.998cm to 2.002cm. a. Calculate the process capability for the ball bearings production process . b. Suggest two proposal to improve the process capability. c. What value of standard deviation will deliver a six sigma process ?arrow_forwardLast year, the manager of the service department at EastWoods Ford instituted a customer opinion program to findout how to improve service. One week after service on a vehicle was performed, an assistant would call the customer tofind out whether the work had been done satisfactorily andhow service could be improved. After one year of gatheringdata, the assistant discovered that the complaints could begrouped into the following five categories:a. Use OM Explorer to draw a bar chart and a Pareto chart toidentify the significant service problems.b. Categorize the following causes of complaints into acause-and-effect diagram: tools, scheduling, defectiveparts, training, billing system, performance measures,diagnostic equipment, and communications.arrow_forward
- 82arrow_forwardPrepare a cause-and-effect diagram to analyze why a machine has produced a large run of defective parts.arrow_forwardSan Angelo Manufacturing Company was concerned about a growing number of defective units being produced. At one time, the company had the percentage of defective units down to less than five per thousand, but recently rates of defects have been near, or even above, 1%. The company decided to graph its defects for the last 8 weeks (40 working days), beginning Monday, September 1 through Friday, October 24. The graph is as attached Identify two important trends evident in the quality-control chart. What might management of San Angelo do to deal with each trend?arrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill EducationOperations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage LearningProduction and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.