Principles Of Operations Management
11th Edition
ISBN: 9780135173930
Author: RENDER, Barry, HEIZER, Jay, Munson, Chuck
Publisher: Pearson,
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Chapter 17, Problem 4P
a)
Summary Introduction
To determine: The percentage of failures.
b)
Summary Introduction
To determine: The number of failures per unit hour.
c)
Summary Introduction
To determine: The number of failures per unit year.
d)
Summary Introduction
To determine: The number of units to fail during the following year.
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Verizon Manufacturing Company spent $410,000 in 2019 to inspect incoming components. Of the $410,000, $250,000 is fixed appraisal costs. The variable inspection cost is $0.20 per component. It takes four components for each finished product. Internal failure costs average $80 per failed unit of finished goods. In 2019, five percent of all completed items had to be reworked. External failure costs average $200 per failed unit. The company's average external failures are one percent of units sold. The company manufactures all units as ordered and carries no materials inventories. Seeking to decrease its total cost of quality (COQ), Verizon contracted Quality-is-Free Consultants, Inc. (QIFC) to study ways to improve product quality and to reduce costs. Upon completion of the study, QIFC recommended automatic inspection equipment that requires a $60,400 annual cost for training and $152,000 for equipment rental and maintenance. The new equipment will eliminate $41,000 of the fixed…
A lathe machine worked 10 hours on a shift for 150 days. During this period, 3 failures
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Ro bert Klassen Manufacturing, a medical equipmentmanufacturer, subjected I 00 heart pacemakers to 5,000 hours oftesting. Ha lfway through the testing, 5 pacemakers fa iled. Whatwas the failure rate in terms of the following:a) Percentage of failu res?b) Number of failures per unit-hour of o perating time?c) Number of failures per unit-year?d) If I, I 00 people receive pacemaker implants, how many unitscan we expect to fa il during the following year?
Chapter 17 Solutions
Principles Of Operations Management
Ch. 17 - Prob. 1EDCh. 17 - Prob. 1DQCh. 17 - Prob. 2DQCh. 17 - Prob. 3DQCh. 17 - Prob. 4DQCh. 17 - What is the trade-off between operator-performed...Ch. 17 - Prob. 6DQCh. 17 - Prob. 7DQCh. 17 - Prob. 8DQCh. 17 - Prob. 9DQ
Ch. 17 - Prob. 10DQCh. 17 - Prob. 1PCh. 17 - Prob. 2PCh. 17 - Prob. 3PCh. 17 - Prob. 4PCh. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - What is the reliability of the system shown?Ch. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - Rick Wing, salesperson for Wave Soldering Systems,...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - What are the expected number of yearly breakdowns...Ch. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - Prob. 21PCh. 17 - Prob. 22PCh. 17 - Prob. 1VCCh. 17 - Prob. 2VCCh. 17 - Prob. 3VC
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- Robert Klassan Manufacturing, a medical equipment manufacturer, subjected 90 heart pacemakers to 4,000 hours of testing. Halfway through the testing, 6 pacemakers failed. The failure rate in terms of: Percent of Failure is Confirmed by my Professor to be 6.7% Number of Failures per unit-hour is Confirmed by my Professor to be 0.00001724 failures per hour Can you show me how my professor got these answers? Also what is the Number of Failures per unit year = ? Failures per year (round your response to four decimal places. I know that the answer is Not 3. My professor said the answer wasn't that simple.arrow_forwardRobert Klassan Manufacturing, a medical equipment manufacturer, subjected 90 heart pacemakers to 4,000 hours of testing. Halfway through the testing, 6 pacemakers failed. The failure in terms of: A.) Percent of Failures =?% (enter your response as a percentage rounded to one decimal place) B.) Number of Failures per unit-hour= ? Failures per hour (round your response to eight decimal places). C.) Number of Failures per unit-hear= ? Failures per year (round your response to four decimal places) D.) If 1,100 people receive pacemaker implants, how many units can we expect to fail during the following year? Number of Failures= ? failures (round your response to two decimal places). This was an example problem given to me. I have a test with a similar question in April. Any explanation would be greatly appreciated.arrow_forwardThe failure rate of a machine is 1.5%. (a) Compute upper and lower control chart limits with 3 o limit and sample size is 100. (b) Compute upper and lower control chart limits with 3 o limit and sample size is 50. (c) Compute upper and lower control chart limits with 2 o limit and sample size is 100. (d) Compute upper and lower control chart limits with 2 o limit and sample size is 50. (e) Discuss the pattern that you observe in the results you obtained.arrow_forward
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