3.4-14. The Metalco Company desires to blend a new alloy of 40 percent tin, 35 percent zinc, and 25 percent lead from several avail- able alloys having the following properties: Alloy Property 1 2 3 4 5 Percentage of tin Percentage of zinc Percentage of lead 60 25 45 20 50 10 15 45 50 40 30 60 10 30 10 Cost ($/lb) 22 20 25 24 27
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- Jim's Outfitters, Inc., makes custom western shirts. 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 shows below. Shirt 1 23456 ∞ 7 8 9 10 Defects 10 05 10 4 9 1 4 5 4 a. Assuming that 10 oberservation are adequate for these purpose, determine the three-sigma control limits for defects per shirt. (what are the UCLC and LCLC) b. Suppose that the next shirt has 12 flaws. What can you say abou the process now?Professor Ahmad of Oasis University gave an engineering case study to his class to analyze and comment. It is a famous case that many universities use in engineering education. Omar, who is a student of Professor Ahmad's class found a website that contains analysis done by many students of Western University. Omar told his close friends Jameel and Khalid what he found. They selected three different analyses. That means each one got a well- written and ready-made answer. Omar directly copied from what he selected. He did not even indicate the website as a source of reference in his submission. Jameel did not directly copy from the one he selected. He rephrased some of the sentences. He also indicated the website as a source of reference in his submission. Although Khalid studied the sample he selected and some others samples available on that website, he wrote the analysis on his own. He also indicated the website as a source of reference. Professor Ahmad's action is academically Select…Using samples of 200 credit card statements, an auditor found the following:Sample 1 2 3 4Number with errors 4 2 5 9a. Determine the fraction defective in each sample.
- 1. Five data entry operators work at the data processing department of the Birmingham Bank. Each day for 30 days, the number of defective records in a sample of 350 records typed by these operators has been noted, as follows: Sample No. No. Defectives Sample No. No. Defectives Sample No. No. Defectives 1 8 11 7 21 16 2 5 12 5 22 11 3 19 13 15 23 6 4 10 14 3 24 6 5 10 15 12 25 13 6 7 16 7 26 11 7 11 17 12 27 15 8 9 18 3 28 6 9 7 19 18 29 12 10 12 20 16 30 4 a) Establish 3σ upper and lower control limits. UCLp = . 055.055 (enter your response as a number between 0 and 1, rounded to three decimal places). LCLp =?(enter your response as a number between 0 and 1, rounded to three decimal places).A shipping company believes that the variation in the cost of customer's shipment can be explained by differences in the weight of the package being To investigate whether this relationship useful, a random sample of 20 customer shipments was selected, and the weight and the cost for each shipment were recorded. the following results were obtained: x y 8 11 6 8 5 11 7 11 12 17 9 11 17 27 13 16 8 9 18 25 17 21 17 24 10 16 20 24 9 21 5 10 13 21 6 16 6 11 12 20 Compute the linear regression model based on the sample data. Interpret the slope and interpret the Estimate the cost if the weight of the shipment isProblem 1: Auto pistons at Wemming Chung’s plant in Shanghai are produced in a forging process, and the diameter is a critical factor that must be controlled. From sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows: Day Mean (mm) Range (mm) 1 156.9 4.2 2 153.2 4.6 3 153.6 4.1 4 155.5 5.0 5 156.6 4.5 a) What are the UCL x (line on top of x, counldn't find the button to do it) and LCL x (line on top of x) , using 3σ? Plot the data. b) What are the UCL R and LCL R , using 3σ? Plot the data. c) Is the Process in Control? (Please screen shot the EXCEl if its in excel) Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.
- 18. Amertron produces electrical wiring in 100-foot rolls. The quality inspection process involves selecting rolls of wire at random and counting the number of de- fects on each roll. The last 20 rolls examined revealed the following numbers of defects: Roll Number of Defects Roll Number of Defects 1 4 11 2 2 12 5 3 13 5 4 4 14 7 1 15 16 4 8 7 17 8 18 19 4 3 3 10 20 4 a. If the number of defects per 100-foot roll of wire follows a Poisson distribution, what is the estimate of c obtained from these observations? b. Using a normal approximation to the Poisson, what are the three-sigma control limits that you would use to monitor this process? c. Are all 20 observations within the control limits?K- The Tyler Apiaries sells bees and beekeeping supplies Bees (including a queen) are shipped in special packages according to weight. target weight of a package is 1.2 kg. Historically, Tyler's shipments have weighed on average 1 2 kg, with a standard deviation of 0.07 kg a. The lower and upper tolerance limits are 1.1 kg and 1.3 kg, respectively The process capability ratio is 0476 (Enter your response rounded to three decimal places) capable of meeting the tolerance limits 99 7% of the time Tyler ApiariesJason's house was built in 1968. He's looking to sell his house in the next 6 months, but first wants to be sure there are no material defects with the house. What should Jason test for first? O Electrical charge in each outlet. Lead-based paint since his house was built prior to 1978. O Water temperatures in the bathrooms. • Argon gas since his house was built prior to 1988.
- Suppose that material hardness is normally distributed with a mean of 52 and a standard deviation of 1. Specification limits for hardness are from 45 to 55. What is Cp?ic 2-Time Series Analysis and F eBook Problem 6-21 (Algorithmic) The Centers for Disease Control and Prevention Office on Smoking and Health (OSH) is the lead federal agency responsible for comprehensive tobacco prevention and control. OSH was established in 1965 to reduce the death and disease caused by tobacco use and exposure to secondhand smoke. One of the many responsibilities of the OSH is to collect data on tobacco use. The following data show the percentage of U.S. adults who were users of tobacco for a recent 11-year period (http://www.cdc.gov/tobacco/data_statistics/tables/trends/cig_smoking/index.htm). Year 1 2 3 4 5 6 7 8 9 10 11 Percentage of Adults Who Smoke 22.9 25 Peremt of Adults Who St 20 15 21.5 20 8 20.8 a. Choose the correct time series plot. (0) 10 20.1 20.1 18.0 18.9 19.4 19,4 20.3 20.3 20.3 19.4 18.8 4 Year (0) $ 10 12 (1) Percent of Adults Who Smoke 25 20 15 10 Year (0) S 10 12 4You have 10 identical cartons each holding 10 water bottles. All bottles weigh 10 oz. each, except for one defective carton in which each of the 10 bottles weighs on 9 oz. only. A scale is available for weighing. (a) Suggest a method for locating the defective carton. *(b) What is the smallest number of times the scale is used that guarantees finding the defective carton? (Hint: You will need to be creative in deciding what to weigh.)