Operations Management
17th Edition
ISBN: 9781259142208
Author: CACHON, Gérard, Terwiesch, Christian
Publisher: Mcgraw-hill Education,
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Chapter 9, Problem 13CQ
Summary Introduction
To determine: The statement that is correct about pareto digrams.
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Which of the following statements about Pareto diagrams is correct?a. The Pareto diagram shows the possible root causes of a problem along with the numberof defect occurrences.b. The Pareto diagram shows the process capability index over time.c. The Pareto diagram shows the mean of a random sample at various points in time.d. The Pareto diagram shows a visual representation of binary outcome variables.
S1: The major beneficiary of an internal audit is the management.S2: An auditor should design the written audit program so that all material transactions will be selected for testing.
Group of answer choices
Only S2 is correct.
Both S1 and S2 are correct.
Both S1 and S2 are incorrect.
Only S1 is correct.
match each variable types with its description: variables: Process input variable, Process output variable, Critical to quality, Key process output variable, Key process intput variable, description (a) a product or process requirement that is no matter to the customer (b) a product or process knob or control that affects characteristics of importance to the customer (c) a product or process knob or control that has no impact on the process (d) a product or process requirement that must be present to make the customer happy but that the customer does not know to explicitly specify (e) a product or process requirement specifically requested by the customer
Chapter 9 Solutions
Operations Management
Ch. 9 - Prob. 1CQCh. 9 - Prob. 2CQCh. 9 - Prob. 3CQCh. 9 - Prob. 4CQCh. 9 - Prob. 5CQCh. 9 - Prob. 6CQCh. 9 - Prob. 7CQCh. 9 - Prob. 8CQCh. 9 - Prob. 9CQCh. 9 - Prob. 10CQ
Ch. 9 - Prob. 11CQCh. 9 - Prob. 12CQCh. 9 - Prob. 13CQCh. 9 - Prob. 14CQCh. 9 - Prob. 15CQCh. 9 - Prob. 16CQCh. 9 - Prob. 17CQCh. 9 - Prob. 18CQCh. 9 - Prob. 1PACh. 9 - Prob. 2PACh. 9 - Prob. 3PACh. 9 - Prob. 4PACh. 9 - Prob. 5PACh. 9 - Prob. 6PACh. 9 - Prob. 7PACh. 9 - Prob. 8PACh. 9 - Prob. 9PACh. 9 - Prob. 10PACh. 9 - Prob. 11PACh. 9 - Prob. 12PACh. 9 - Prob. 1CCh. 9 - Prob. 2C
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- Which technique would be useful for each of the following situations? a. To rank-order the causes of a quality problem. b. To brainstorm the reasons why a product might have failed. c. To find an assignable cause. d. To determine if a process range is under control. e. To reduce the variability of failures found in the field under actual use of the product. f. To achieve the smallest possible variance in the time it takes to wait on tables in a restaurant.arrow_forwardWhich of the following is not a characteristic of nonfinancial performance quality indicators?a. They relate to physical processes and therefore focus attention on precise problem areas in needof attention.b. They can provide immediate feedback on whether quality-improvement efforts have succeededin improving quality.c. They are typically less expensive to obtain compared to cost-of-quality (COQ) data.d. They are predicted by a set of relevant financial indicatorsarrow_forwardThe output from a process contains a 0.02 defective unit. Defective units that go undetected into final assemblies cost $25 each to replace. An inspection process, which would detect and remove all defectives, can be established to test these units. However, the inspector, who can test 20 units per hour, is paid $8 per hour, including fringe benefits. Should an inspection station be established to test all units?a. What is the cost to inspect each unit?b. What is the benefit (or loss) from the inspection process?arrow_forward
- Which of the following statements about Pareto diagrams is correct?a. The Pareto diagram shows the possible root causes of a problem but does not show thefrequency of defect occurrences.b. The Pareto diagram shows the defects in order from most commonly occurring to leastcommonly occurring.c. The Pareto diagram shows the mean of a random sample at various points in time.d. The bars in the Pareto diagram have, on average, roughly the same height.arrow_forwardFollowing the announcement of a major quality problem, the share price of a companyfalls substantially. This decrease is a result of assignable cause variation. True or false?a. Trueb. Falsearrow_forwardIf the process capability index (Cp) calculates to be 1.4 then you would conclude a.The process is not stable b.The process is stable c.The process is not capable d.The process is capable e.The process should be scrappedarrow_forward
- Production. Consider again the task of the quality control inspectors in Exercise 22. a) In this context, what is meant by the power of the test the inspectors conduct? b) They are currently testing 5 items each hour. Someone has proposed that they test 10 instead. What are the advantages and disadvantages of such a change? c) Their test currently uses a 5% level of significance. What are the advantages and disadvantages of changing to an alpha level of 1%? d) Suppose that, as a day passes, one of the machines on the assembly line produces more and more items that are defective. How will this affect the power of the test? Exercise 22 Quality control. Production managers on an assembly line must monitor the output to be sure that the level of defective products remains small. They periodically inspect a random sample of the items produced. If they find a significant increase in the proportion of items that must be rejected, they will halt the assembly process until the…arrow_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_forwardOther things remaining the same, and assuming that X is smaller than USL and larger than LSL, if the standard deviation (σ) of the process increases, process capability index (Cpk) of the process will: Stay the same Will always increase Will always decrease Will sometimes increasearrow_forward
- Please do not give solution in image format thanku Canine Gourmet Super Breath dog treats are sold in boxes labeled with a net weight of 9 ounces (255 grams) per box. Each box contains 6 individual 1.5-ounce packets. To reduce the chances of shorting the customer, product design specifications call for the packet-filling process average to be set at 43.5 grams so that the average net weight per box of 6 packets will be 261 grams. Tolerances are set for the box to weigh 261±15 grams. The standard deviation for the packet-filling process is 1.01 grams. The target process capability ratio is 1.67. One day, the packet-filling process average weight drifts down to 43.0 grams. Is the packaging process capable? Is an adjustment needed? Since the process capability index, Cpk, is (____), the process is (_____) . (Enter your response rounded to three decimal places.) Since the process capability ratio, Cp, is (_____), the problem is that the process is (_____) . (Enter your…arrow_forwardSuppose that a processoutput is normally distributed with a mean of 30.0 and a variance of 1.44. If the specifications are 30.0 /- 3.25, then compute process capability indices. Is the process capable of meeting specifications?arrow_forwardWhich of the following statements is not true of Quality control? a. Quality control aims at detecting defects rather than preventing the defects. b. Quality control means the recognition and removal of identifiable causes and defects, and variables from the set standards c. The aim of quality control is to provide products which are dependable, satisfactory and economical. d. A quality control system is designed to ensure economical production of products of uniform quality which is acceptable to the customer.arrow_forward
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