Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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If a process has 37,000 dpmo, what is its sigma capability?
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- Appropriate motives for adopting ISO 9000 include which of the following? To create a quality management system All of the above To conform to the requirements of customers. To improve operationsarrow_forwardSuppose you are analyzing processing times for a machining operation. In your analysis, you found C, = 2.1 and Cpk = 1.28. Given this information, which of the following sigma levels is the highest that you could claim your process is capable of meeting? O 1 sigma O 2 sigma 3 sigma O 4 sigma 5 sigma O 6 sigmaarrow_forwardAbernathy, Inc., produces two different generators and is concerned about their quality. The company has identified the following quality activities and costs associated with the two products: Generator A Generator B Units produced 170,000 340,000 Warranty work (units) 1,700 850 Scrapped units (number) 3,400 850 Inspection (hours) 3,400 1,700 Quality training (hours) 85 85 Activities: Performing warranty work $816,000 Scrapping units 612,000 Inspecting 306,000 Quality training 85,000 Required: 1. Calculate the quality cost per unit for each product, and break this unit cost into quality cost categories. If required, round your answers to the nearest cent. Generator A Generator B Unit cost $fill in the blank 1 $fill in the blank 2arrow_forward
- Need help calculating the margin of error for the question below. I show n=100, sigma = 1, and 95% prob equls a z score of 1.96 for z_alpha/2. Just having issues calcuating the Margin of Error value. The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3 minutes. It is known that the standard deviation of the population of checkout times is 1 minute. With a 0.95 probability, the sample mean will provide a margin of error of 0.196. If we wanted to cut this margin of error in half, how many customers would we need to include in our sample?arrow_forwardConsider a process with lower process control limit as 1.338 and upper process control limit as 1.342 . The lower specification limit is 1.335 and the upper specification limit is 1.345. Utilizing the information provided, is the process is capable of meeting design specifications?arrow_forwardA sigma process with a 1.5 sigma shift in its mean has a process capability index of 1.2. Find the process performance index. a) 0.5 b) 0.7 c) 1.2 d) 3.6 (Dont hand writing solution)arrow_forward
- Discuss what we mean by multipole moments.arrow_forwardA process generating attribute data has an estimated sigma capability = 3.3. Assuming the process mean is shifted +/- 1.5 sigma from the target value, what is the estimated dpmo? Estimated dpmo = ____.arrow_forwardProcess capability indices measure process’ ____; process performance indices measure process’ ____. (a) actual performance; actual performance (b) actual performance; potential capability (c) potential capability; actual performance (d) potential capability; potential capabilityarrow_forward
- The mean service time (x¯) of a hairdresser is 18 minutes with a standard deviation (σ) of 2 minutes. Upper specification limit (USL) is 22 minutes, whereas lower specification limit (LSL) is 15 minutes for this process. What is the process capability index (cpk) for this process? Is the process capable? Cpk=0.67, capable Cpk=1.5, capable Cpk=0.67, not capable Cpk=0.5, capable Cpk=0.5, not capablearrow_forwardExcel AssignmentSamsung manufactures cellphone with an average standby time of 10 hours between charges. Thestandby time of the cellphone is normally distributed. During the design stage, the quality engineeringstaff recorded 18 observations of the standby time of the cellphone. Using the observations below, isthere evidence that the average standby time of a Samsung cellphones is not 10 hours? Use a level ofsignificance of .05 Answer the following question:1. What is the null and alternative hypothesis to the case above?2. Copy the data into excel and do an analysis to test the hypothesisUpload the excel file with the your assignment submission3. What is the conclusion of your analysis? (try to state it in terms of the original problem orquestion)4. Develop the 95% confidence interval.arrow_forwardDesign specifications require that a key dimension on a product measure 106 ± 12 units. A process being considered for producing this product has a standard deviation of five units. What can you say (quantitatively) regarding the process capability? Assume that the process is centered with respect to specifications. answer 0.8000 Suppose the process average shifts to 98. Calculate the new process capability. Note: Round your answer to 4 decimal places. ? What is the probability of defective output after the process shift? ?arrow_forward
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