_Solution__Quality_Control_HW

3.1.The Great North Woods Clothing Company sells specialty outdoor clothing through its catalog. A quality problem that generates customer complaints occurs when a warehouse employee fills an order with the wrong items. The company has decided to implement a process control plan by inspecting the ordered items after they have been obtained from the warehouse and before they have been packaged. The company has taken 30 samples (during a 30-day period), each for 100 orders, and recorded the number of defective orders in each sample, as follows Sample           Number of Defectives           Sample           Number of Defectives      1                                12                                 16                                6      2                                14                                 17                                3      3                                10                                 18                                7      4…

Struggling with Problem 4

Problem 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.

Do not use chatgpt.

Problem 5 Madras Medical College is trying to improve its image providing a positive experience for its patients and their relatives. Part of the "image" program involves providing tasty, inviting patient meals that are also healthful. A questionnaire accompanies each meal served, asking the patient, among other things, whether he or she is satisfied or unsatisfied with the meal. A 100-patient sample of the survey results over the past 7 days yielded the following data: June through December and the MAD and January. The initial the end of December. What can you say about the performance or Day 1 Sample size 100 100 100 100 100 100 100 Construct p-chart that plots the percentage of patients unsatisfied with their meals. Set the control limits to include 99.73% of the random variation in meal satisfaction. Comment on your results. 2 3 4 5 6 7 No. of unsatisfied patients 24 22 8 15 10 26 17

Quality Control of Doughnuts: The Hudson Valley Bakery makes doughnuts that are packaged in boxes with labels stating that there are 12 doughnuts weighing a total of 42 oz. If the variation among the doughnuts is too large, some boxes will be underweight (cheating consumers) and others will be overweight (lowering profit). A consumer would not be happy with a doughnut so small that it can be seen only with an electron microscope, nor would a consumer be happy with a doughnut so large that it resembles a tractor tire. The quality-control supervisor has found that he can stay out of trouble if the doughnuts have a mean of 3.50 oz. and a standard deviation of 0.06 oz. or less. Twelve doughnuts are randomly selected from the production line and weighed, with the result given here (in ounces).   3.43     3.37      3.58     3.50     3.68     3.61     3.42     3.52     3.66     3.50     3.36     3.42 Construct a 95% confidence interval for σ, and then determine whether the quality-control…

In response to intensive foreign competition, the management of Florex Company has attempted over the past year to improve the quality of its products. A statistical process control system has been installed and other steps have been taken to decrease the amount of warranty and other field costs, which have been trending upward over the past several years. Costs relating to quality and quality control over the last two years are given below:     Costs (in thousands) Last Year This Year Inspection $ 720 $ 909 Quality engineering $ 450 $ 765 Depreciation of test equipment $ 675 $ 270 Rework labor $ 1,080 $ 1,530 Statistical process control $ 0 $ 225 Cost of field servicing $ 1,350 $ 1,260 Supplies used in testing $ 45 $ 81 Systems development $ 720 $ 900 Warranty repairs $ 3,780 $ 1,620 Net cost of scrap $ 630 $ 1,170 Product testing $ 900 $ 1,800 Product recalls $ 3,150 $ 900 Disposal of defective products $ 810 $ 1,080 Sales have been flat over the…

The Commonwealth Banking Corporation issues a national credit card through its various bank branches in five southeast-ern states. The bank credit card business is highly competitive and interest rates do not vary substantially, so the company decided to attempt to retain its customers by improving cus-tomer service through a reduction in billing errors. The credit card division monitored its billing department process by tak-ing daily samples of 200 customer bills for 30 days and checking their accuracy. The sample results are as follows:Develop a p-chart for the billing process using 3 controllimits and indicate if the process is out of control.

A team of undergraduate business students was asked to recommend improvement to the data entry process at the county appraiser’s office. The team identified several types of errors, such as posting an incorrect name or entering an incorrect parcel number. The deed abstractors were asked to keep a record of the errors in data entry that were sent to them. The following table is a frequency distribution of errors: Defect Total Posting error in name  Posting error in parcel Property sold after tax bills were mailed Inappropriate call transfer (not part of deeds>mapping) Posting error in legal description>incompletelegal description Deeds received after tax bills printed Correspondence errors Miscellaneous errors  23 21 5 18   4 6 2 1 a. Construct a Pareto diagram of these defects in data entry.b. What recommendations would you suggest to the county appraiser?

Abernathy, 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 2

Inter-State Moving and Storage Company wishes to establish a control chart to monitor the proportion of residential moves that result in written complaints due to late delivery, lost items, or damaged items. A sample of 40 moves is selected for each of the last 12 months. The number of written complaints in each sample is 9, 7, 4, 9, 1, 9, 11, 5, 5, 8, 7, and 15. Number Defective Percent defective 9 18 7 14 4 8 9 18 1 2 9 18 11 22 5 10 5 10 8 16 7 14 15 30 a. Insert the mean proportion defective, UCL, and LCL. (Leave no cells blank - be certain to enter "0" wherever required. Round your intermediate calculations and final answers to 2 decimal places.) Mean proportion defective   UCL   LCL   c. Does it appear that the number of complaints is out of control for any of the months?multiple choice Yes No

The Road King Tire Company in Birmingham wants to monitor the quality of the tires it manufactures. Each day the company quality-control manager takes a sample of 100 tires, tests them, and determines the number of defective tires. The results of 20 samples have been recorded as follows: Sample Number of Defectives Sample Number of Defectives  1 14 11 18  2 12 12 10  3  9 13 19  4 10 14 20  5 11 15 17  6  7 16 18  7  8 17 18  8 14 18 22  9 16 19 24 10 17 20 23   Construct a P -chart for this process using 2q limits and describe the variation in the process.   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.

Houston North Hospital is trying to improve its image by providing a positive experience for its patients and their relatives. Part of the​ "image" program involves providing​ tasty, inviting patient meals that are also healthful. A questionnaire accompanies each meal​ served, asking the​ patient, among other​ things, whether he or she is satisfied or unsatisfied with the meal. A 50​-patient sample of the survey results over the past 7 days yielded the following​ data:                                                                        Day No. of Unsatisfied Patients Sample Size 1 26 50 2 20 50 3 10 50 4 15 50 5 12 50 6 26 50 7 15 50   The control limits to include​ 99.73% of the random variation in meal satisfaction​ are: UCLp​= ​(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).…

Boston Electric Generators has been getting manycomplaints from its major customer, Home Station, about thequality of its shipments of home generators. Daniel Shimshak,the plant manager, is alarmed that a customer is providing himwith the only information the company has on shipment quality.He decides to collect information on defective shipments througha form he has asked his drivers to complete on arrival at customers'stores. The forms for the first 279 shipments have been turnedin. They show the following over the past 8 weeks:                                                                                          Even though Daniel increased his capacity by adding more workersto his normal contingent of 30, he knew that for many weekshe exceeded his regular output of 30 shipments per week. Areview of his turnover over the past 8 weeks shows the following:                                                             a) Develop a scatter diagram using total number of shipmentsand…

What are the 2 basic categories of Statistical Quality Control (SQC)?

The temperature of a burrito served to a customer in a local Mexican restaurant A: Discrete B;  Continous

As a hospital administrator of a large hospital, you are concerned with the absenteeism among nurses’ aides. The issue has been raised by registered nurses, who feel they often have to perform work normally done by their aides. To get the facts, absenteeism data were gathered for the last 3 weeks (5 working days each week), which is considered a representative period for future conditions. After taking random samples of 64 personnel files each day, the following data were produced: You want to be sure to identify any instances of unusual absences. If some are present, you will have to explore them on behalf of the registered nurses. a. Design a p-chart. b. Based on your p-chart and the data from the last 3 weeks, what can you conclude about the absenteeism of nurses’ aides? 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.

BlueMoon Bottlers has a bottle-filling process with a mean value of 64 ounces and a standard deviation of 8 ounces. Suppose the upper and lower specification limits are 71 and 57 ounces, respectively. What is the process capability index of this process? (Note: You MUST show every single step and detailed derivation for full credit)

The IRS is concerned with improving the accuracy of tax information given by its representatives over the telephone. Previous studies involved asking a set of 25 questions of a large number of IRS telephone representatives to determine the proportion of correct responses. Historically, the averageproportion of correct responses has been 72 percent. Recently, IRS representatives have been receiving more training. On April 26, the set of 25 tax questions were again asked of 20 randomly selected IRS telephone representatives. The numbers of correct answers were 18, 16, 19, 21, 20, 16,21, 16, 17, 10, 25, 18, 25, 16, 20, 15, 23, 19, 21, and 19. a. What are the upper and lower control limits for the appropriate p-chart for the IRS? Use z = 3. b. Is the tax information process in statistical control?

Thirty patients who check out of the Rock Creek County Regional Hospital each week are asked to complete a ques-tionnaire about hospital service. Since patients do not feel well when they are in the hospital, they typically are very critical of the service. The number of patients who indi-cated dissatisfaction of any kind with the service for each 30-patient sample for a 16-week period is as follows:Construct a control chart to monitor customer satisfactionat the hospital using 3 limits and determine if the processis in control.

Explain the purpose of Quality Area 2 in the NQS and what the standards require Explain the purpose of Quality area 5 and identify each of the related standards

Erros Pharma Product Performance Appraisal Erros Pharma Products is engaged in the manufacture and distribution of generic and branded medicines for various ailment. It employs more than 450 production employees and 30 sales distribution people. Products are well accepted by the market and physicians patronize the product together with their patients. A performance appraisal has been regularly conducted at six month intervals using the Graphic Rating Scale. The company uses the five point rating scale and the factors evaluated are quality of work, quantity of work and observable factors as initiative, leadership, responsibility and dependability. Two supervisors rate the employees and the average of the two raters becomes the basis for salary evaluation. The department manager reviews the ratings and discusses with the employees the final results given by the supervisors. Three most vocal activists in the company complain directly to the president about the…

Analyse the issues described below using root cause analysis techniques. A travel agency has recently lost several medium-sized and large corporate customers due to complaints about poor customer service. The management team of the travel agency decided to appoint a team of analysts to address this problem. The team gathered data by conducting interviews and surveys with current and past corporate customers and gathering customer feedback data that the travel agency has recorded over time. About 2% of customers complained about errors made in their bookings. On one occasion, a customer requested a change to a flight booking. The travel agent wrote an e-mail to the customer suggesting that the change had been made and attached a modified travel itinerary. However, it later turned out that the flight reservation system had not confirmed the modified booking. As a result, the customer was not allowed to board the flight, leading to a series of severe inconveniences for the customer.…

Management of quality is the aspect of management that is concerned with achieving, maintaining and improving quality of products or services. All activities of an organization affect quality in some way or another. Hence, quality management should involve all aspects of management including planning, leading, organizing and controlling, and to recognize the quality function as an integral part of the overall management function. A)Generate FIVE reasonable principles of quality function derive from the above thought. B)Examine how quality improvement affects the healthcare system.

Differentiate Statistical Quality Control and Statistical Process Control.

A garment manufacturer wants to set up a control chart for irregularities. Each week a random sample of 25 garments is collected from production and the number of irregularities is recorded. The table below gives the results for the past 20 weeks: 1 6 8 10 Sample Number Irregularities 11 2 3 4 5 7 9 8 12 4 16 5 8 17 10 11 16 20 Sample Number | Irregularities 11 12 13 14 15 17 18 19 7 12 13 8 17 11 9 10 (a) Using the data set up an appropriate control chart using a three sigma control limits. (b) Comment on the process. [8 marks] [2 marks] 9,

Nike CIO surveyed their employees at the R&D department and collected the following data to help him to decide whether employees should work from home or commute to the work. The data represents the number of miles that employees commute from home to work each day. There are two samples: one for males and one for females. Males: 13 5 2 23 23 14 5 Females: 15 6 3 2 6 Which of the following statements is true? Females have the larger range. The coefficient of variation is larger for males than for females. The coefficient of variation is larger for females than for males. Females have the larger mean.

Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up to produce a large run of resistors of 1,000 ohms each. Use Exhibit 13.7. To set up the machine and to create a control chart to be used throughout the run, 15 samples were taken with four resistors in each sample. The complete list of samples and their measured values are as follows: Use three-sigma control limits. c. Determine the UCL and LCL for a X−X− chart. (Round your answers to 3 decimal places.) d. Determine the UCL and LCL for R-chart. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 3 decimal places.)

What makes statistical process management such an important tool for quality control?

Define the term state of statistical control?

A local steel pipe manufacturing company makes pipes. In a quality control assessment, a total of five (05) samples are collected with four (04) observations within each sample. The sample means (X-bar) are; 14.09, 13.94, 16.86, 18.77, and 16.64 respectively. Next, the corresponding ranges are; 9.90, 7.73, 7.89, 7.56, and 5.50 respectively. The lower and upper control limits of the R-chart are_ respectively Oa. None is correct O b. 0,16.68 O c. 0, 17.59 O d. 0,17.32 O e. 1, 10.5