1. You are an engineer working for New House Furniture Ltd, specialist in furniture manufacturing. Recentlycustomers are returning the chairs within the warranty period as they are not happy with the product, withoutclear problem defined. Your task is to apply Six Sigma DMAIC method to the process of Chair Manufacturing(showing in the diagram below) to identify the tope reason for product returns and improve the quality.Driina* FIxture 1247-14Venty pans & countsvia temp ale 2910insoect wood perRi pian 760-11AprogramDFA 3ReceiveWood &CNC Cutting &Edge RoutingAssemble LegSupportsPre-StartDrillingHardwareHardw are on no-RWorkASM WorkInstructionsanspeci statusinstrucionsTemplateC87-0Venty pans & Countsvia témplate 3000Fixture 1248-14Fixture 1249-14AssembleSeatInspectAlignmentPackage &ShipAdd HardwareAssemble SeatBackPackageStopProcess Flow -Chair Manufacturing

Six Sigma is a system for integrating methods used by businesses to improve their performance over…

Answered: 1. You are an engineer working for New…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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4. The meaning of quality management has evolved greatly over the past century. Which of the following statements best exemplifies OA. Production of parts within control limits and the maintenance of process output in a state of statistical control as measured by statistical pr OB. The collaboration of all functional disciplines to design and offer quality products and services OC. Inspection of every item produced to ensure that exact customer specifications are met OD. Continuous improvement, competitive advantage, and meeting or exceeding customer requirements Mark for review (Will be highlighted on the review page) >
The Healthy Chocolate Company makes a variety of chocolate candles, including a 12-ounce chocolate bar (340 grams) and a box of six 1-ounce chocolate bars (170 grams). a.Specifications for the 12-ounce bar are 322 grams to 358 grams. What is the largest standard deviation (In grams) that the machine that fills the bar molds can have and still be considered capable if the average fill is 340 grams? (Round your intermediate calculations to 2 decimal places and final answer to 3 decimal places.) Standard deviation b.The machine that filles the bar molds for the 6-ounce bars has a standard deviation of .84 grams. The filling machine is set to deliver an average of 1.04 ounces per bar. Specifications for the six-bar box are 150 to 190 grams per box. Is the process capable? Hint: The variance for the box is equal to six times the bar variance. Convert all calculations Into grams. O Yes O No grams c.What is the lowest setting in ounces for the filling machine that will provide capability in…
The measurement of 85 automotive cables gave an arithmetic mean of the inner diameters of 3.51 mm and a standard deviation of 0.02 mm.The value required by the manufacturer is 3.5 upper/lower tolerance +0.04/ -0.12It is requested : a. Calculate the capability coefficients Cp, Cpk and state whether or not the machine is capable of producing compliant parts, i.e. whether or not the data dispersion is well centred. If applicable, calculate the adjustment coefficient Cr.b. If scrap is obtained, state whether it is recoverable or non-recoverable and calculate the percentage of scrap.c. Plot the limits of the tolerance field and the distribution of the measured data (using mean and standard deviation).
Autopitch devices are made for both major- andminor-league teams to help them improve their batting averages.When set at the standard position, Autopitch can throw hardballstoward a batter at an average speed of 60 mph. To monitorthese devices and to maintain the highest quality, Autopitchexecutive Neil Geismar takes samples of 10 devices at a time. Theaverage range is 3 mph. Using this information, construct controllimits for:a) :X chart.b) R chart.
Vera Johnson and Merris Williams manufacture vanishing cream. Their packaging process has four steps: (1) mix, (2) fill, (3) cap, and (4) label. They have had the reported process failures analyzed, which shows the following:Process failure FrequencyLumps of unmixed product 7Over- or underfilled jars 18Jar lids did not seal 6Labels rumpled or missing 29 Total 60 Draw a Pareto chart to identify the vital failures.
Quality Cost ClassificationRequired Classify each of the following costs into one of the four quality cost (i.e., COQ) categories:1. Materials, labor, and overhead costs of scrapped units.2. Engineering time spent to determine the causes of failures to meet product specification.3. Wages and salaries for the time spent by workers to gather quality measurements.4. Information systems costs expended to develop data requirements.5. Clerical staff expenses to coordinate training programs.6. Salaries for members of problem-solving teams.7. Payment to settle a product-liability lawsuit.
Figure 12–1 presents a conceptual picture of the trade-off between process cost and the costs of losses due to poor quality. What are the costs of poor quality and what difficulties might arise when attempting to measure these costs?
Which of the following is not a prevention activity in controlling quality? Multiple Choice Field testing. Certifying suppliers. Quality training. Process improvement.
The following table lists all costs of quality incurred by Kate's shop last year. Annual inspection costs 247000 Annual cost of scrap materials 456000 Annual rework cost 204679 Annual cost of quality training 626000 Annual warranty cost 1886000 Annual testing cost 664000 What was Kate's appraisal cost for quality last year?
A process at Printwright, Inc.’s largest facility is used to make plastic gears for a computer printer. The data found in the worksheet Prob. 9-15 were gathered by a quality analyst. The gears were designed to be 3.57 ` 0.05 centimeters (cm) in diameter. Construct a histogram of the data. What can you observe about the shape of the dis- tribution? What would you recommend to the production manager based on your analysis?
Explain the Cronbach’s Alpha measurement and its internal consistency?
Production phase After the pre-production phase, the product entered the production phase without introducing any changes in the process. Since it seemed to be stable SPC was not performed for several months, with process stability and variability being assessed by the level of nonconformities it it produced. However, after a time, an increasing number of customer complaints due to products supplied outside the specification/. The Quality Engineer decided to take 20 samples from the process with regular spacing between samples. Each sample is made up of 3 parts. The data obtained for the highlighted dimension samples are presented in Table 2 below: measurements in mm for critical sample dimension number 1 2 3 4 5 6 7 8 9 Observations 2 3 50.767 1 50.972 50.785 50.956 50.97 50.914 51.066 50.933 51.086 50.917 51.081 51.092 50.948 50.828 51.054 50.859 51.083 50.789 50.984 50.961 50.943 51.013 51.02 50.734 50.898 50.956 50.885 51.004 50.984 50.839 Table 2: Measurements in mm for critical…

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