PARKET SISTERS Computers and word processors notwithstanding, the art of writing by hand recently entered a boom era. People are buying fountain pens again, and mechanical pencils are becoming more popular than ever. Joe Script, the president and CEO of Parket Sisters, a small but growing pen and pencil manufacturer, wants to
What is a control chart? What are the grand mean, the UCL and the LCL of a control chart for the mean? Why do you suppose +/-3 standard errors are used in control charts and not two standard errors or even one standard error? Explain.
Fifty samples of size 600 were drawn from a manufacturing process and the number of defectives in each sample was counted. The mean sample proportion was 0.025. The lower control limit for the 3-sigma p chart is
Automobiles are randomly selected for a close examination for fit and finish defects including such items as dirt speck in the paint and panels that are not properly aligned. Based on data collected for the following vehicles that were so inspected construct a 3-sigma c-chart, then reach a conlcusion regarding whether the proce
For the following data use the weighting constant x = 0.5 and exponential smoothing to determine the forecast for 2005. Subscribers Subscribers Year (millions) Year (Millions) 1993 16.0 1999 86.0 1994 24.1 2000
Please see the attached file for the fully formatted problems. Special Care, Inc. is a large, long term care facility whose new management has hired you as the quality management/risk management coordinator. There are many problems that they would like you to tackle, including staffing issues, an increase in patient falls,
The attached discusses: Acme believes that the majority of the incorrect invoices come from within the accounts receivable department. You are the manager of the accounts receivable department and you want to confirm or deny the company's assertion. You decide to monitor the activities of your department very closely for
Please help with the following problem. Provide step by step calculations. In general, how will the upper and lower control limits change if a 2-sigma control chart is used instead of a 3-sigma control chart?
A&A Enterprises ships integrated circuits to companies that assemble computers. Because computer manufacturing operations run on little inventory, parts must be available when promised. Thus, a critical element of A&A's customer satisfaction is on-time delivery performance. To ensure that their delivery process is performing
1. What is a control chart? What are the grand mean, the UCL and the LCL of a control chart for the mean? Why do you suppose -3/+3 standard errors are used in control charts and not two standard errors or even one standard error? Explain. 2. A significance test is used to prevent a machine from underfilling or overfilling
Please provide an answer to the problem below: ----------------------------------------------------------------------- Illustrated is the data collected on the yearly registrations for a Six Sigma Seminar at the Quality College are shown in the following table: Year 1 2 3 4 5 6 7 8
Breeze Toothpaste Company has been having a problem with some of the tubes of toothpaste leaking. The tubes are packed in containers with 100 tubes each. Ten containers of toothpaste have been sampled. The following number of toothpaste tubes were found to have leaks: Sample # of leaky tubes 1 4
DAY- % OF PAPERS DELIVERED ON TIME 1-91.6 2-89.4 3-92.8 4-90.0 5-86.4 6-96.8 7-91.4 8-98.8 9-95.3 10-93.6 Referring to the table above, what is the numerical value of the lower control limit for the P chart? 0.920 0.911 0.891 0.798
A New York company manufactures 0.0109-in. thick aluminum cans for a major beverage supplier. Refer to the excel spread sheet (attached) and I have to conduct an analysis of the process data for the cans that are 0.0111 in. thick. The values in the data set are the measured axial loads of cans, and the top lids are pressed into
The Early Morning Delivery Service guarantees delivery of small packages by 10:30 A.M. Of course, some of the packages are not delivered by 10:30 A.M. For a sample of 200 packages delivered each of the last 15 working days, the following number of packages were delivered after the deadline: 12, 12, 4, 11, 12, 3, 13, 5, 5, 3, 2,
A political pollster randomly selects a sample of 100 voters each day for 8 consecutive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic. Sample (Day) Number Favoring Incumbent 1 57 2 57 3 53 4 51 5 55
A local newspaper has 10 delivery boys who each deliver the morning newspaper to 50 customers every day. The owner decides to record the percentage of papers delivered on time for a 10-day period and construct a p chart to see whether the percentage is too erratic. Day Percentage of Papers Delivered on Time 1 91.6 2 89.4
Find the margin of error that corresponds to the given values of n (times) and x (successes) and the degree of confidence: n=1400, x=420, 95%. Go 3 decimal places of precision. Does not want upper or lower limits wants to calculate value for E.
1. Describe an organizational scenario where quantitative (ratio level of measurement) information is or could be used to make management decisions about creating, maintaining, or improving quality. 2. State the management information need. How will the analysis be used? 3. Identify the variable(s) being measured. 4. Describ
A new industrial oven has just been installed at the Piatt Bakery. To develop experience regarding the oven temperature, an inspector reads the temperature at four different places inside the oven each half hour. The first reading, taken at 8:00 A.M., was 340 degrees Fahrenheit. (Only the last two digits are given in the followi
A new industrial oven has just been installed at the Piatt Bakery. To develop experience regarding the oven temperature, an inspector reads the temperature at four different places inside the oven each half hour. The first reading, taken at 8:00 a.m., was 340 degrees Fahrenheit. (Only the last two digits are given in the foll
Question: Dave Christi runs a car wash chain scattered throughout Chicago. He is concerned that some local managers are giving away free washes to their friends. He decides to collect data on the number of "voided" sales receipts. Of course, some of them are legitimate voids. Would the following data indicate a reasonable number
A study of tobacco quitting was done. The authors concluded that a significant preictor of maintaining cessation was forbidding smoking in the house, and gave the following supportive statistics: OR 1.95; C.I. 1.05-3.6; p<0.01 What is the exposure? What is the outcome? What does OR stand for? What does CI stand for? St
Problem 1. The perfect Circle Company manufactures bushings. Once each hour a sample of 125 finished bushings is drawn from the output; each bushing is examined by a technician. Those which fail are classified as defective; the rest are satisfactory. Here are data on ten consecutive samples taken in one week: Sample no. 1
A hospital administrator was concerned with the time it took for patients' medical records to be processed after discharge. The hospital determined that all records should be processed within 5 days of discharge. Any record not processed within 5 days of discharge was considered to be non conforming. The number of patients disch