OPERATIONS MANAGMENT IN...-ACCESS
7th Edition
ISBN: 9781259716225
Author: SCHROEDER
Publisher: MCG
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Chapter 9, Problem 2DQ
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To explain: How to decide how much inspection to be performed on the chips.
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Suppose you make electronic calculators that contain achip purchased from a local vendor. How would you decide how much inspection to perform on the chips supplied to you?
Suppose you make electronic calculators that contain a chip purchased from a local vendor. How would you decide how many inspections to perform on the chips supplied to you?
Explain the most important changes in the inspection process and consider the weaknesses of the inspection process ?
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- Which among the seven (7) activities of the Fagan inspection methodology is the hardest to perform? Elaborate on your answer. Assuming you are part of a Fagan inspection team, which inspector role would you prefer doing? Why?arrow_forwardWhat are typical performance testing errors?arrow_forwardIn acceptance sampling, if the sample passes inspection then: Group of answer choices a The full order is accepted b The remaining items in the order are subjected to inspection c The order is returned to the supplier d A supplier can hit 100% quality levels e The inspected items are returned to the supplier Please select from answer choicesarrow_forward
- 12. Statistical testing, functional testing, reliability testing and environmental testing are in Category 1. True Falsearrow_forwardWhat is the necessity for quality assurance?arrow_forwardAs an IQA what is the the importance of planning and preparing internal quality assurance activitiesarrow_forward
- A machine produces parts that are either good (90%), slightly defective (2%), or obviously defective (8%). Produced parts get passed through an automatic inspection machine, which is able to detect any part that is obviously defective and discard it. What is the quality of the parts that make it through the inspection machine and get shipped?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_forwardA manager tracked equipment failures and found 1 failure on 12 days, 2 failure on 11 days, 3 failures on 9 days, and 4 failures on 7 days. What is the 2-decimal mean? What is the 2-decimal standard deviation?arrow_forward
- Identify the following types of quality costs by category, for example, prevention costs: Inspection of materials Return of product Discounts due to defects Inspection of reworked units Training of quality-control technicians Engineering design Staffing of complaint phone-lines after sales Scraparrow_forwardA manufacturer receives shipments of several thousand parts from a supplier every week. The manufacturer has the option of conducting a 100 percent inspection before accepting the parts. The decision is based on a random sample of 15 parts. If parts are not inspected, defectives become apparent during a later assembly operation, at which time replacement cost is $6.25 per unit. Inspection cost for 100 percent inspection is $1 per unit. a. At what fraction defective would the manufacturer be indifferent between 100 percent inspection and leaving discovery of defectivesu ntil the later assembly operation? b. For the sample size used, what is the maximum number of sample defectives that would cause the lot to be passed without 100 percent inspection, based on your answer to part (a)?arrow_forwardEach day, a FedEx competitor processes approximately 50,000 shipments. Suppose that they use the same Service Quality Index as FedEx and identified the following numbers of errors during a 5-day week (see the "FedEx: Measuring Service Performance" box). These values are hypothetical and do not reflect any real company’s actual performance. Description Weight Number of Errors Complaints reopened 3 145 Damaged packages 10 17 International 1 109 Invoice adjustments 1 284 Late pickup stops 3 207 Lost packages 10 4 Missed proof of delivery 1 28 Right date late 1 752 Traces 3 115 Wrong day late 5 11 Compute the Service Quality Indicator by finding the weighted sum of errors as a percentage of total shipments. Do not round intermediate calculations. Round your answer to three decimal places. Service Quality Indicator (SQI): %arrow_forward
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