6. The number of defects in a product measures O A. quality of product design. OB. customer satisfaction with the product. OC. conformance quality of the product. OD. reliability of the product.
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- A research firm has been asked to determine the proportion of all restaurants in the state of Ohio that serve alcoholic beverages. The firm wants to be 98% confident of its results but has no idea of what the actual proportion is. The firm would like to report an error of no more than 0.07. How large a sample should it take? Appendix A Statistical Tables (Round answer to 0 decimal places, e.g. 5,125.)Sample size = enter a sample size rounded to 0 decimal placesJim’s Outfitters, Inc., makes custom fancy shirts for cowboys. The shirts could be flawed in various ways, including flaws in the weave or color of the fabric, loose buttons or decorations, wrong dimensions, and uneven stitches. Jim randomly examined 10 shirts, with the following results:Shirt Defects1 82 03 74 125 56 107 28 49 610 6a. Assuming that 10 observations are adequate for these purposes, determine the three-sigma control limits for defects per shirt.b. Suppose that the next shirt has 13 flaws. What can you say about the process now?-Answer Problem 17.5 (a, b, & c) at the end chapter 17. Show all the steps in your responses to each of the four questions. As always, clearly each response (e.g., 17.5 (a); 17.5 (b); 17.5 (c) and show all steps taken to arrive at the answers. 17.5 A manufacturer of disk drives for notebook computers wants an MTBF of at least 50,000 hours. Recent test results for 10 units were one failure at 10,000 hours, another at 25,000 hours, and two more at 45,000 hours. The remaining units were still running at 60,000 hours. Determine the following: (A)Percentage of failures (B)Number of failures per unit-hour of operating time (C)MTBF at this point in the testing
- 1. The trading partners (such as suppliers, distributors and logistics service providers) are not part of the value stream of an organization. True False 2. A Total Quality Management (TQM) system systematically, sustainably and deliberately exposes hidden problems in an organization. True False 3. From a perspective of Statistical Process Control (SPC), a six-sigma process will have which of the following attributes? a) The USL and LSL will be separated by a distance of six sigma b) The process center will be aligned with the LSL c) The number of defects produced by the process will be 0.0018 parts per million d) All of the aboveSuppose that a quality characteristic is normally distributed with specifications at 100 ± 20. The process standard deviation is 6.(a) Suppose that the process mean is 100. What are the natural tolerance limits? Calculate Cp and Cpk and interpret these ratios. What fraction of parts do you expect to be defective?(b) Suppose that the process mean is 106. What are the natural tolerance limits? What is thefraction defective? Calculate Cp and Cpk and interpret these ratios.Design specifications require that a key dimension on a product measure 100kg plus and minus 3kg. If the value of the quality exceeds the target by the tolerance of 3kg on either side, the product will be likely to fail during the warranty period and cost $480 for repair. A process being considered for producing this product has a standard deviation of 1.5kg A) Compute the process capability ratio if the process is centered. Is it capable to meet the quality specification? Explain. B) Suppose the original process average shifts to 99kg, maintaining the current dispersion. Calculate the process capability index after the shift. Is it capable? C) What is the average loss per unit after the shift as in (part b)? Use Taguchi loss function for multi-products case
- 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?Quality control in a factory pulls 40 parts with paint, packaging, or electronic defects from anassembly line. Of these, 28 had a paint defect, 17 had a packaging defect, 13 had an electronicdefect, 6 had both paint and packaging defects, 7 had both packaging and electronics defects, and 10had both paint and electronic defects. Did any part have all three types of defect? If so, how many?1. HighQualityasavalueproposition:Paras took on himself to ensure quality becomes a top differentiator and a value proposition to its customers. They started working closely with beekeepers in the Himachali region around the Himalayan foothills and in Muzaffarpur, where they encourage ethical beekeeping. Ethical beekeeping is a format where a hundred per cent of the honey is harvested at no point. Only 60% will be taken out of the hives that, or through that process, at any point, 40% will be left back for the bees.Also, through the exploration and pursuit of pure honey, Paras came across multiflora honey, which is most commonly used as a source of honey. But unfortunately, adulteration happens when a blend of multiflora honey is packaged and sold. Paras ensured that the lab tested the source from which they collected the honey to ensure the promise of purity was kept at every stage. Moreover, while sourcing the honey, the honey twig ensured that it was entirely antibiotic-free.2.…
- 1. HighQualityasavalueproposition:Paras took on himself to ensure quality becomes a top differentiator and a value proposition to its customers. They started working closely with beekeepers in the Himachali region around the Himalayan foothills and in Muzaffarpur, where they encourage ethical beekeeping. Ethical beekeeping is a format where a hundred per cent of the honey is harvested at no point. Only 60% will be taken out of the hives that, or through that process, at any point, 40% will be left back for the bees.Also, through the exploration and pursuit of pure honey, Paras came across multiflora honey, which is most commonly used as a source of honey. But unfortunately, adulteration happens when a blend of multiflora honey is packaged and sold. Paras ensured that the lab tested the source from which they collected the honey to ensure the promise of purity was kept at every stage. Moreover, while sourcing the honey, the honey twig ensured that it was entirely antibiotic-free.2.…Ettlie Engineering has a new catalyst injection system for your countertop production line. Your process engineering departmenthas conducted experiments and determined that the mean is 8.01 grams with a standard deviation of .03. Your specificationsare: m = 8.0 and s = .04, which means an upper specification limit of 8.12 [ = 8.0 + 3(.04)] and a lower specification limit of7.88 [= 8.0 - 3(.04)].What is the Cpk performance of the injection system?A quality characteristic of interest for a tea-bag-filling process isthe weight of the tea in the individual bags. If the bags are underfilled,two problems arise. First, customers may not be able to brew the teato be as strong as they wish. Second, the company may be in violationof the truth-in-labeling laws. For this product, the label weight on thepackage indicates that, on average, there are 5.5 grams of tea in a bag. Ifthe mean amount of tea in a bag exceeds the label weight, the companyis giving away product. Getting an exact amount of tea in a bag is problematic because of variation in the temperature and humidity insidethe factory, differences in the density of the tea, and the extremely fastfilling operation of the machine (approximately 170 bags per minute).The file Teabags contains these weights, in grams, of a sample of50 tea bags produced in one hour by a single machine:5.65 5.44 5.42 5.40 5.53 5.34 5.54 5.45 5.52 5.415.57 5.40 5.53 5.54 5.55 5.62 5.56 5.46 5.44 5.515.47…